523 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			523 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			LLVM
		
	
	
	
| ; RUN: llc < %s -frame-pointer=all -mcpu=cortex-a8 -mtriple arm-linux-gnu -target-abi=apcs -o - | FileCheck %s
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| ;  This test is fairly fragile.  The goal is to ensure that "large" stack
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| ;  objects are allocated closest to the stack protector (i.e., farthest away 
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| ;  from the Stack Pointer.)  In standard SSP mode this means that large (>=
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| ;  ssp-buffer-size) arrays and structures containing such arrays are
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| ;  closet to the protector.  With sspstrong and sspreq this means large
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| ;  arrays/structures-with-arrays are closest, followed by small (< ssp-buffer-size)
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| ;  arrays/structures-with-arrays, and then addr-taken variables.
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| ;
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| ;  Ideally, we only want verify that the objects appear in the correct groups
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| ;  and that the groups have the correct relative stack offset.  The ordering
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| ;  within a group is not relevant to this test.  Unfortunately, there is not
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| ;  an elegant way to do this, so just match the offset for each object.
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| 
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| %struct.struct_large_char = type { [8 x i8] }
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| %struct.struct_large_char2 = type { [2 x i8], [8 x i8] }
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| %struct.struct_small_char = type { [2 x i8] }
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| %struct.struct_large_nonchar = type { [8 x i32] }
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| %struct.struct_small_nonchar = type { [2 x i16] }
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| 
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| define void @layout_ssp() ssp {
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| entry:
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| ; Expected stack layout for ssp is
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| ;  176 large_char          . Group 1, nested arrays, arrays >= ssp-buffer-size
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| ;  168 struct_large_char   .
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| ;  164 scalar1             | Everything else
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| ;  160 scalar2
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| ;  156 scalar3
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| ;  152 addr-of
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| ;  148 small_nonchar
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| ;  112 large_nonchar
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| ;  110 small_char
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| ;  108 struct_small_char
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| ;   72 struct_large_nonchar
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| ;   68 struct_small_nonchar
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| 
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| ; CHECK: layout_ssp:
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| 
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| ; CHECK: bl get_scalar1
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| ; CHECK: str r0, [sp, #164]
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| ; CHECK: bl end_scalar1
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| 
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| ; CHECK: bl get_scalar2
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| ; CHECK: str r0, [sp, #160]
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| ; CHECK: bl end_scalar2
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| 
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| ; CHECK: bl get_scalar3
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| ; CHECK: str r0, [sp, #156]
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| ; CHECK: bl end_scalar3
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| 
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| ; CHECK: bl get_addrof
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| ; CHECK: str r0, [sp, #152]
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| ; CHECK: bl end_addrof
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| 
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| ; CHECK: get_small_nonchar
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| ; CHECK: strh r0, [sp, #148]
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| ; CHECK: bl end_small_nonchar
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| 
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| ; CHECK: bl get_large_nonchar
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| ; CHECK: str r0, [sp, #112]
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| ; CHECK: bl end_large_nonchar
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| 
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| ; CHECK: bl get_small_char
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| ; CHECK: strb r0, [sp, #110]
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| ; CHECK: bl end_small_char
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| 
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| ; CHECK: bl get_large_char
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| ; CHECK: strb r0, [sp, #176]
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| ; CHECK: bl end_large_char
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| 
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| ; CHECK: bl get_struct_large_char
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| ; CHECK: strb r0, [sp, #168]
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| ; CHECK: bl end_struct_large_char
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| 
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| ; CHECK: bl get_struct_small_char
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| ; CHECK: strb r0, [sp, #108]
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| ; CHECK: bl end_struct_small_char
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| 
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| ; CHECK: bl get_struct_large_nonchar
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| ; CHECK:str r0, [sp, #72]
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| ; CHECK: bl end_struct_large_nonchar
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| 
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| ; CHECK: bl get_struct_small_nonchar
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| ; CHECK: strh r0, [sp, #68]
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| ; CHECK: bl end_struct_small_nonchar
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|   %x = alloca i32, align 4
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|   %y = alloca i32, align 4
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|   %z = alloca i32, align 4
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|   %ptr = alloca i32, align 4
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|   %small2 = alloca [2 x i16], align 2
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|   %large2 = alloca [8 x i32], align 16
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|   %small = alloca [2 x i8], align 1
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|   %large = alloca [8 x i8], align 1
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|   %a = alloca %struct.struct_large_char, align 1
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|   %b = alloca %struct.struct_small_char, align 1
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|   %c = alloca %struct.struct_large_nonchar, align 8
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|   %d = alloca %struct.struct_small_nonchar, align 2
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|   %call = call i32 @get_scalar1()
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|   store i32 %call, i32* %x, align 4
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|   call void @end_scalar1()
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|   %call1 = call i32 @get_scalar2()
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|   store i32 %call1, i32* %y, align 4
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|   call void @end_scalar2()
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|   %call2 = call i32 @get_scalar3()
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|   store i32 %call2, i32* %z, align 4
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|   call void @end_scalar3()
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|   %call3 = call i32 @get_addrof()
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|   store i32 %call3, i32* %ptr, align 4
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|   call void @end_addrof()
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|   %call4 = call signext i16 @get_small_nonchar()
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|   %arrayidx = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i64 0
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|   store i16 %call4, i16* %arrayidx, align 2
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|   call void @end_small_nonchar()
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|   %call5 = call i32 @get_large_nonchar()
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|   %arrayidx6 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i64 0
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|   store i32 %call5, i32* %arrayidx6, align 4
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|   call void @end_large_nonchar()
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|   %call7 = call signext i8 @get_small_char()
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|   %arrayidx8 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i64 0
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|   store i8 %call7, i8* %arrayidx8, align 1
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|   call void @end_small_char()
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|   %call9 = call signext i8 @get_large_char()
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|   %arrayidx10 = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i64 0
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|   store i8 %call9, i8* %arrayidx10, align 1
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|   call void @end_large_char()
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|   %call11 = call signext i8 @get_struct_large_char()
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|   %foo = getelementptr inbounds %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
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|   %arrayidx12 = getelementptr inbounds [8 x i8], [8 x i8]* %foo, i32 0, i64 0
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|   store i8 %call11, i8* %arrayidx12, align 1
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|   call void @end_struct_large_char()
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|   %call13 = call signext i8 @get_struct_small_char()
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|   %foo14 = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
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|   %arrayidx15 = getelementptr inbounds [2 x i8], [2 x i8]* %foo14, i32 0, i64 0
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|   store i8 %call13, i8* %arrayidx15, align 1
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|   call void @end_struct_small_char()
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|   %call16 = call i32 @get_struct_large_nonchar()
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|   %foo17 = getelementptr inbounds %struct.struct_large_nonchar, %struct.struct_large_nonchar* %c, i32 0, i32 0
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|   %arrayidx18 = getelementptr inbounds [8 x i32], [8 x i32]* %foo17, i32 0, i64 0
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|   store i32 %call16, i32* %arrayidx18, align 4
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|   call void @end_struct_large_nonchar()
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|   %call19 = call signext i16 @get_struct_small_nonchar()
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|   %foo20 = getelementptr inbounds %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
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|   %arrayidx21 = getelementptr inbounds [2 x i16], [2 x i16]* %foo20, i32 0, i64 0
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|   store i16 %call19, i16* %arrayidx21, align 2
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|   call void @end_struct_small_nonchar()
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|   %arraydecay = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i32 0
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|   %arraydecay22 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i32 0
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|   %arraydecay23 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i32 0
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|   %arraydecay24 = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i32 0
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|   %0 = load i32, i32* %x, align 4
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|   %1 = load i32, i32* %y, align 4
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|   %2 = load i32, i32* %z, align 4
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|   %coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
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|   %3 = bitcast [8 x i8]* %coerce.dive to i64*
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|   %4 = load i64, i64* %3, align 1
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|   %coerce.dive25 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
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|   %5 = bitcast [2 x i8]* %coerce.dive25 to i16*
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|   %6 = load i16, i16* %5, align 1
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|   %coerce.dive26 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
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|   %7 = bitcast [2 x i16]* %coerce.dive26 to i32*
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|   %8 = load i32, i32* %7, align 1
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|   call void @takes_all(i64 %4, i16 %6, %struct.struct_large_nonchar* byval align 4 %c, i32 %8, i8* %arraydecay, i8* %arraydecay22, i32* %arraydecay23, i16* %arraydecay24, i32* %ptr, i32 %0, i32 %1, i32 %2)
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|   ret void
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| }
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| 
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| define void @layout_sspstrong() sspstrong {
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| entry:
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| ; Expected stack layout for sspstrong is
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| ; 144  large_nonchar          . Group 1, nested arrays,
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| ; 136  large_char             .  arrays >= ssp-buffer-size
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| ; 128  struct_large_char      .
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| ; 96   struct_large_nonchar   .
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| ; 84+8 small_non_char         | Group 2, nested arrays, 
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| ; 90   small_char             |  arrays < ssp-buffer-size
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| ; 88   struct_small_char      |
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| ; 84   struct_small_nonchar   |
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| ; 80   addrof                 * Group 3, addr-of local
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| ; 76   scalar1                + Group 4, everything else
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| ; 72   scalar2                +
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| ; 68   scalar3                +
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| ;   
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| ; CHECK: layout_sspstrong:
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| 
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| ; CHECK: bl get_scalar1
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| ; CHECK: str r0, [sp, #76]
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| ; CHECK: bl end_scalar1
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| 
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| ; CHECK: bl get_scalar2
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| ; CHECK: str r0, [sp, #72]
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| ; CHECK: bl end_scalar2
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| 
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| ; CHECK: bl get_scalar3
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| ; CHECK: str r0, [sp, #68]
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| ; CHECK: bl end_scalar3
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| 
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| ; CHECK: bl get_addrof
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| ; CHECK: str r0, [sp, #80]
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| ; CHECK: bl end_addrof
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| 
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| ; CHECK: get_small_nonchar
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| ; CHECK: strh r0, [sp, #92]
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| ; CHECK: bl end_small_nonchar
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| 
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| ; CHECK: bl get_large_nonchar
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| ; CHECK: str r0, [sp, #144]
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| ; CHECK: bl end_large_nonchar
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| 
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| ; CHECK: bl get_small_char
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| ; CHECK: strb r0, [sp, #90]
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| ; CHECK: bl end_small_char
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| 
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| ; CHECK: bl get_large_char
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| ; CHECK: strb r0, [sp, #136]
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| ; CHECK: bl end_large_char
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| 
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| ; CHECK: bl get_struct_large_char
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| ; CHECK: strb r0, [sp, #128]
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| ; CHECK: bl end_struct_large_char
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| 
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| ; CHECK: bl get_struct_small_char
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| ; CHECK: strb r0, [sp, #88]
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| ; CHECK: bl end_struct_small_char
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| 
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| ; CHECK: bl get_struct_large_nonchar
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| ; CHECK: str r0, [sp, #96]
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| ; CHECK: bl end_struct_large_nonchar
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| 
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| ; CHECK: bl get_struct_small_nonchar
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| ; CHECK: strh r0, [sp, #84]
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| ; CHECK: bl end_struct_small_nonchar
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|   %x = alloca i32, align 4
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|   %y = alloca i32, align 4
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|   %z = alloca i32, align 4
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|   %ptr = alloca i32, align 4
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|   %small2 = alloca [2 x i16], align 2
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|   %large2 = alloca [8 x i32], align 16
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|   %small = alloca [2 x i8], align 1
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|   %large = alloca [8 x i8], align 1
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|   %a = alloca %struct.struct_large_char, align 1
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|   %b = alloca %struct.struct_small_char, align 1
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|   %c = alloca %struct.struct_large_nonchar, align 8
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|   %d = alloca %struct.struct_small_nonchar, align 2
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|   %call = call i32 @get_scalar1()
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|   store i32 %call, i32* %x, align 4
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|   call void @end_scalar1()
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|   %call1 = call i32 @get_scalar2()
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|   store i32 %call1, i32* %y, align 4
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|   call void @end_scalar2()
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|   %call2 = call i32 @get_scalar3()
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|   store i32 %call2, i32* %z, align 4
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|   call void @end_scalar3()
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|   %call3 = call i32 @get_addrof()
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|   store i32 %call3, i32* %ptr, align 4
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|   call void @end_addrof()
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|   %call4 = call signext i16 @get_small_nonchar()
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|   %arrayidx = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i64 0
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|   store i16 %call4, i16* %arrayidx, align 2
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|   call void @end_small_nonchar()
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|   %call5 = call i32 @get_large_nonchar()
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|   %arrayidx6 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i64 0
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|   store i32 %call5, i32* %arrayidx6, align 4
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|   call void @end_large_nonchar()
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|   %call7 = call signext i8 @get_small_char()
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|   %arrayidx8 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i64 0
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|   store i8 %call7, i8* %arrayidx8, align 1
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|   call void @end_small_char()
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|   %call9 = call signext i8 @get_large_char()
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|   %arrayidx10 = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i64 0
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|   store i8 %call9, i8* %arrayidx10, align 1
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|   call void @end_large_char()
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|   %call11 = call signext i8 @get_struct_large_char()
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|   %foo = getelementptr inbounds %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
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|   %arrayidx12 = getelementptr inbounds [8 x i8], [8 x i8]* %foo, i32 0, i64 0
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|   store i8 %call11, i8* %arrayidx12, align 1
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|   call void @end_struct_large_char()
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|   %call13 = call signext i8 @get_struct_small_char()
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|   %foo14 = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
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|   %arrayidx15 = getelementptr inbounds [2 x i8], [2 x i8]* %foo14, i32 0, i64 0
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|   store i8 %call13, i8* %arrayidx15, align 1
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|   call void @end_struct_small_char()
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|   %call16 = call i32 @get_struct_large_nonchar()
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|   %foo17 = getelementptr inbounds %struct.struct_large_nonchar, %struct.struct_large_nonchar* %c, i32 0, i32 0
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|   %arrayidx18 = getelementptr inbounds [8 x i32], [8 x i32]* %foo17, i32 0, i64 0
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|   store i32 %call16, i32* %arrayidx18, align 4
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|   call void @end_struct_large_nonchar()
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|   %call19 = call signext i16 @get_struct_small_nonchar()
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|   %foo20 = getelementptr inbounds %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
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|   %arrayidx21 = getelementptr inbounds [2 x i16], [2 x i16]* %foo20, i32 0, i64 0
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|   store i16 %call19, i16* %arrayidx21, align 2
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|   call void @end_struct_small_nonchar()
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|   %arraydecay = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i32 0
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|   %arraydecay22 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i32 0
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|   %arraydecay23 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i32 0
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|   %arraydecay24 = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i32 0
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|   %0 = load i32, i32* %x, align 4
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|   %1 = load i32, i32* %y, align 4
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|   %2 = load i32, i32* %z, align 4
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|   %coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
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|   %3 = bitcast [8 x i8]* %coerce.dive to i64*
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|   %4 = load i64, i64* %3, align 1
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|   %coerce.dive25 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
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|   %5 = bitcast [2 x i8]* %coerce.dive25 to i16*
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|   %6 = load i16, i16* %5, align 1
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|   %coerce.dive26 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
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|   %7 = bitcast [2 x i16]* %coerce.dive26 to i32*
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|   %8 = load i32, i32* %7, align 1
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|   call void @takes_all(i64 %4, i16 %6, %struct.struct_large_nonchar* byval align 4 %c, i32 %8, i8* %arraydecay, i8* %arraydecay22, i32* %arraydecay23, i16* %arraydecay24, i32* %ptr, i32 %0, i32 %1, i32 %2)
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|   ret void
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| }
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| 
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| define void @layout_sspreq() sspreq {
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| entry:
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| ; Expected stack layout for sspreq is the same as sspstrong
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| ;   
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| ; CHECK: layout_sspreq:
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| 
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| ; CHECK: bl get_scalar1
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| ; CHECK: str r0, [sp, #76]
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| ; CHECK: bl end_scalar1
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| 
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| ; CHECK: bl get_scalar2
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| ; CHECK: str r0, [sp, #72]
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| ; CHECK: bl end_scalar2
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| 
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| ; CHECK: bl get_scalar3
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| ; CHECK: str r0, [sp, #68]
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| ; CHECK: bl end_scalar3
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| 
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| ; CHECK: bl get_addrof
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| ; CHECK: str r0, [sp, #80]
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| ; CHECK: bl end_addrof
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| 
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| ; CHECK: get_small_nonchar
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| ; CHECK: strh r0, [sp, #92]
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| ; CHECK: bl end_small_nonchar
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| 
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| ; CHECK: bl get_large_nonchar
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| ; CHECK: str r0, [sp, #144]
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| ; CHECK: bl end_large_nonchar
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| 
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| ; CHECK: bl get_small_char
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| ; CHECK: strb r0, [sp, #90]
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| ; CHECK: bl end_small_char
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| 
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| ; CHECK: bl get_large_char
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| ; CHECK: strb r0, [sp, #136]
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| ; CHECK: bl end_large_char
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| 
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| ; CHECK: bl get_struct_large_char
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| ; CHECK: strb r0, [sp, #128]
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| ; CHECK: bl end_struct_large_char
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| 
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| ; CHECK: bl get_struct_small_char
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| ; CHECK: strb r0, [sp, #88]
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| ; CHECK: bl end_struct_small_char
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| 
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| ; CHECK: bl get_struct_large_nonchar
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| ; CHECK: str r0, [sp, #96]
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| ; CHECK: bl end_struct_large_nonchar
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| 
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| ; CHECK: bl get_struct_small_nonchar
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| ; CHECK: strh r0, [sp, #84]
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| ; CHECK: bl end_struct_small_nonchar
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|   %x = alloca i32, align 4
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|   %y = alloca i32, align 4
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|   %z = alloca i32, align 4
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|   %ptr = alloca i32, align 4
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|   %small2 = alloca [2 x i16], align 2
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|   %large2 = alloca [8 x i32], align 16
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|   %small = alloca [2 x i8], align 1
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|   %large = alloca [8 x i8], align 1
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|   %a = alloca %struct.struct_large_char, align 1
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|   %b = alloca %struct.struct_small_char, align 1
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|   %c = alloca %struct.struct_large_nonchar, align 8
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|   %d = alloca %struct.struct_small_nonchar, align 2
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|   %call = call i32 @get_scalar1()
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|   store i32 %call, i32* %x, align 4
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|   call void @end_scalar1()
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|   %call1 = call i32 @get_scalar2()
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|   store i32 %call1, i32* %y, align 4
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|   call void @end_scalar2()
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|   %call2 = call i32 @get_scalar3()
 | |
|   store i32 %call2, i32* %z, align 4
 | |
|   call void @end_scalar3()
 | |
|   %call3 = call i32 @get_addrof()
 | |
|   store i32 %call3, i32* %ptr, align 4
 | |
|   call void @end_addrof()
 | |
|   %call4 = call signext i16 @get_small_nonchar()
 | |
|   %arrayidx = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i64 0
 | |
|   store i16 %call4, i16* %arrayidx, align 2
 | |
|   call void @end_small_nonchar()
 | |
|   %call5 = call i32 @get_large_nonchar()
 | |
|   %arrayidx6 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i64 0
 | |
|   store i32 %call5, i32* %arrayidx6, align 4
 | |
|   call void @end_large_nonchar()
 | |
|   %call7 = call signext i8 @get_small_char()
 | |
|   %arrayidx8 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i64 0
 | |
|   store i8 %call7, i8* %arrayidx8, align 1
 | |
|   call void @end_small_char()
 | |
|   %call9 = call signext i8 @get_large_char()
 | |
|   %arrayidx10 = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i64 0
 | |
|   store i8 %call9, i8* %arrayidx10, align 1
 | |
|   call void @end_large_char()
 | |
|   %call11 = call signext i8 @get_struct_large_char()
 | |
|   %foo = getelementptr inbounds %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
 | |
|   %arrayidx12 = getelementptr inbounds [8 x i8], [8 x i8]* %foo, i32 0, i64 0
 | |
|   store i8 %call11, i8* %arrayidx12, align 1
 | |
|   call void @end_struct_large_char()
 | |
|   %call13 = call signext i8 @get_struct_small_char()
 | |
|   %foo14 = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
 | |
|   %arrayidx15 = getelementptr inbounds [2 x i8], [2 x i8]* %foo14, i32 0, i64 0
 | |
|   store i8 %call13, i8* %arrayidx15, align 1
 | |
|   call void @end_struct_small_char()
 | |
|   %call16 = call i32 @get_struct_large_nonchar()
 | |
|   %foo17 = getelementptr inbounds %struct.struct_large_nonchar, %struct.struct_large_nonchar* %c, i32 0, i32 0
 | |
|   %arrayidx18 = getelementptr inbounds [8 x i32], [8 x i32]* %foo17, i32 0, i64 0
 | |
|   store i32 %call16, i32* %arrayidx18, align 4
 | |
|   call void @end_struct_large_nonchar()
 | |
|   %call19 = call signext i16 @get_struct_small_nonchar()
 | |
|   %foo20 = getelementptr inbounds %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
 | |
|   %arrayidx21 = getelementptr inbounds [2 x i16], [2 x i16]* %foo20, i32 0, i64 0
 | |
|   store i16 %call19, i16* %arrayidx21, align 2
 | |
|   call void @end_struct_small_nonchar()
 | |
|   %arraydecay = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i32 0
 | |
|   %arraydecay22 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i32 0
 | |
|   %arraydecay23 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i32 0
 | |
|   %arraydecay24 = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i32 0
 | |
|   %0 = load i32, i32* %x, align 4
 | |
|   %1 = load i32, i32* %y, align 4
 | |
|   %2 = load i32, i32* %z, align 4
 | |
|   %coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
 | |
|   %3 = bitcast [8 x i8]* %coerce.dive to i64*
 | |
|   %4 = load i64, i64* %3, align 1
 | |
|   %coerce.dive25 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
 | |
|   %5 = bitcast [2 x i8]* %coerce.dive25 to i16*
 | |
|   %6 = load i16, i16* %5, align 1
 | |
|   %coerce.dive26 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
 | |
|   %7 = bitcast [2 x i16]* %coerce.dive26 to i32*
 | |
|   %8 = load i32, i32* %7, align 1
 | |
|   call void @takes_all(i64 %4, i16 %6, %struct.struct_large_nonchar* byval align 4 %c, i32 %8, i8* %arraydecay, i8* %arraydecay22, i32* %arraydecay23, i16* %arraydecay24, i32* %ptr, i32 %0, i32 %1, i32 %2)
 | |
|   ret void
 | |
| }
 | |
| 
 | |
| define void @struct_with_protectable_arrays() sspstrong {
 | |
| entry:
 | |
| ; Check to ensure that a structure which contains a small array followed by a
 | |
| ; large array is assigned to the stack properly as a large object.
 | |
| ; CHECK: struct_with_protectable_arrays:
 | |
| ; CHECK: bl get_struct_small_char
 | |
| ; CHECK: strb r0, [sp, #68]
 | |
| ; CHECK: bl end_struct_small_char
 | |
| ; CHECK: bl get_struct_large_char2
 | |
| ; CHECK: strb r0, [sp, #106]
 | |
| ; CHECK: bl end_struct_large_char2
 | |
|   %a = alloca %struct.struct_small_char, align 1
 | |
|   %b = alloca %struct.struct_large_char2, align 1
 | |
|   %d1 = alloca %struct.struct_large_nonchar, align 8
 | |
|   %d2 = alloca %struct.struct_small_nonchar, align 2
 | |
|   %call = call signext i8 @get_struct_small_char()
 | |
|   %foo = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %a, i32 0, i32 0
 | |
|   %arrayidx = getelementptr inbounds [2 x i8], [2 x i8]* %foo, i32 0, i64 0
 | |
|   store i8 %call, i8* %arrayidx, align 1
 | |
|   call void @end_struct_small_char()
 | |
|   %call1 = call signext i8 @get_struct_large_char2()
 | |
|   %foo2 = getelementptr inbounds %struct.struct_large_char2, %struct.struct_large_char2* %b, i32 0, i32 1
 | |
|   %arrayidx3 = getelementptr inbounds [8 x i8], [8 x i8]* %foo2, i32 0, i64 0
 | |
|   store i8 %call1, i8* %arrayidx3, align 1
 | |
|   call void @end_struct_large_char2()
 | |
|   %0 = bitcast %struct.struct_large_char2* %b to %struct.struct_large_char*
 | |
|   %coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %0, i32 0, i32 0
 | |
|   %1 = bitcast [8 x i8]* %coerce.dive to i64*
 | |
|   %2 = load i64, i64* %1, align 1
 | |
|   %coerce.dive4 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %a, i32 0, i32 0
 | |
|   %3 = bitcast [2 x i8]* %coerce.dive4 to i16*
 | |
|   %4 = load i16, i16* %3, align 1
 | |
|   %coerce.dive5 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d2, i32 0, i32 0
 | |
|   %5 = bitcast [2 x i16]* %coerce.dive5 to i32*
 | |
|   %6 = load i32, i32* %5, align 1
 | |
|   call void @takes_all(i64 %2, i16 %4, %struct.struct_large_nonchar* byval align 4 %d1, i32 %6, i8* null, i8* null, i32* null, i16* null, i32* null, i32 0, i32 0, i32 0)
 | |
|   ret void
 | |
| }
 | |
| 
 | |
| declare i32 @get_scalar1()
 | |
| declare void @end_scalar1()
 | |
| 
 | |
| declare i32 @get_scalar2()
 | |
| declare void @end_scalar2()
 | |
| 
 | |
| declare i32 @get_scalar3()
 | |
| declare void @end_scalar3()
 | |
| 
 | |
| declare i32 @get_addrof()
 | |
| declare void @end_addrof()
 | |
| 
 | |
| declare signext i16 @get_small_nonchar()
 | |
| declare void @end_small_nonchar()
 | |
| 
 | |
| declare i32 @get_large_nonchar()
 | |
| declare void @end_large_nonchar()
 | |
| 
 | |
| declare signext i8 @get_small_char()
 | |
| declare void @end_small_char()
 | |
| 
 | |
| declare signext i8 @get_large_char()
 | |
| declare void @end_large_char()
 | |
| 
 | |
| declare signext i8 @get_struct_large_char()
 | |
| declare void @end_struct_large_char()
 | |
| 
 | |
| declare signext i8 @get_struct_large_char2()
 | |
| declare void @end_struct_large_char2()
 | |
| 
 | |
| declare signext i8 @get_struct_small_char()
 | |
| declare void @end_struct_small_char()
 | |
| 
 | |
| declare i32 @get_struct_large_nonchar()
 | |
| declare void @end_struct_large_nonchar()
 | |
| 
 | |
| declare signext i16 @get_struct_small_nonchar()
 | |
| declare void @end_struct_small_nonchar()
 | |
| 
 | |
| declare void @takes_all(i64, i16, %struct.struct_large_nonchar* byval align 8, i32, i8*, i8*, i32*, i16*, i32*, i32, i32, i32)
 |