forked from OSchip/llvm-project
				
			
		
			
				
	
	
		
			139 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			139 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			LLVM
		
	
	
	
| ; RUN: llc < %s -mcpu=generic -march=x86 -mattr=+cmov -verify-machineinstrs | FileCheck %s
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| 
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| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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| 
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| define void @func(i32 %argc, i8** %argv) nounwind {
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| entry:
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| 	%argc.addr = alloca i32		; <i32*> [#uses=1]
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| 	%argv.addr = alloca i8**		; <i8***> [#uses=1]
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| 	%val1 = alloca i32		; <i32*> [#uses=2]
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| 	%val2 = alloca i32		; <i32*> [#uses=15]
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| 	%andt = alloca i32		; <i32*> [#uses=2]
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| 	%ort = alloca i32		; <i32*> [#uses=2]
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| 	%xort = alloca i32		; <i32*> [#uses=2]
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| 	%old = alloca i32		; <i32*> [#uses=18]
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| 	%temp = alloca i32		; <i32*> [#uses=2]
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| 	%temp64 = alloca i64
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| 	store i32 %argc, i32* %argc.addr
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| 	store i8** %argv, i8*** %argv.addr
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| 	store i32 0, i32* %val1
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| 	store i32 31, i32* %val2
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| 	store i32 3855, i32* %andt
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| 	store i32 3855, i32* %ort
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| 	store i32 3855, i32* %xort
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| 	store i32 4, i32* %temp
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| 	%tmp = load i32* %temp
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|         ; CHECK: lock
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|         ; CHECK: xaddl
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|   %0 = atomicrmw add i32* %val1, i32 %tmp monotonic
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| 	store i32 %0, i32* %old
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|         ; CHECK: lock
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|         ; CHECK: xaddl
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|   %1 = atomicrmw sub i32* %val2, i32 30 monotonic
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| 	store i32 %1, i32* %old
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|         ; CHECK: lock
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|         ; CHECK: xaddl
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|   %2 = atomicrmw add i32* %val2, i32 1 monotonic
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| 	store i32 %2, i32* %old
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|         ; CHECK: lock
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|         ; CHECK: xaddl
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|   %3 = atomicrmw sub i32* %val2, i32 1 monotonic
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| 	store i32 %3, i32* %old
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|         ; CHECK: andl
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %4 = atomicrmw and i32* %andt, i32 4080 monotonic
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| 	store i32 %4, i32* %old
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|         ; CHECK: orl
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %5 = atomicrmw or i32* %ort, i32 4080 monotonic
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| 	store i32 %5, i32* %old
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|         ; CHECK: xorl
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %6 = atomicrmw xor i32* %xort, i32 4080 monotonic
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| 	store i32 %6, i32* %old
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %7 = atomicrmw min i32* %val2, i32 16 monotonic
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| 	store i32 %7, i32* %old
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| 	%neg = sub i32 0, 1		; <i32> [#uses=1]
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %8 = atomicrmw min i32* %val2, i32 %neg monotonic
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| 	store i32 %8, i32* %old
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %9 = atomicrmw max i32* %val2, i32 1 monotonic
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| 	store i32 %9, i32* %old
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %10 = atomicrmw max i32* %val2, i32 0 monotonic
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| 	store i32 %10, i32* %old
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %11 = atomicrmw umax i32* %val2, i32 65535 monotonic
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| 	store i32 %11, i32* %old
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %12 = atomicrmw umax i32* %val2, i32 10 monotonic
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| 	store i32 %12, i32* %old
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %13 = atomicrmw umin i32* %val2, i32 1 monotonic
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| 	store i32 %13, i32* %old
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|         ; CHECK: cmov
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %14 = atomicrmw umin i32* %val2, i32 10 monotonic
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| 	store i32 %14, i32* %old
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|         ; CHECK: xchgl   %{{.*}}, {{.*}}(%esp)
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|   %15 = atomicrmw xchg i32* %val2, i32 1976 monotonic
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| 	store i32 %15, i32* %old
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| 	%neg1 = sub i32 0, 10		; <i32> [#uses=1]
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %16 = cmpxchg i32* %val2, i32 %neg1, i32 1 monotonic
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| 	store i32 %16, i32* %old
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl
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|   %17 = cmpxchg i32* %val2, i32 1976, i32 1 monotonic
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| 	store i32 %17, i32* %old
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|         ; CHECK: movl  [[R17atomic:.*]], %eax
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|         ; CHECK: movl	$1401, %[[R17mask:[a-z]*]]
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|         ; CHECK: andl	%eax, %[[R17mask]]
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|         ; CHECK: notl	%[[R17mask]]
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|         ; CHECK: lock
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|         ; CHECK: cmpxchgl	%[[R17mask]], [[R17atomic]]
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|         ; CHECK: jne
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|         ; CHECK: movl	%eax,
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|   %18 = atomicrmw nand i32* %val2, i32 1401 monotonic
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|   store i32 %18, i32* %old
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|         ; CHECK: andl
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|         ; CHECK: andl
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|         ; CHECK: notl
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|         ; CHECK: notl
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|         ; CHECK: lock
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|         ; CHECK: cmpxchg8b
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|   %19 = atomicrmw nand i64* %temp64, i64 17361641481138401520 monotonic
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|   store i64 %19, i64* %temp64
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| 	ret void
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| }
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| 
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| define void @test2(i32 addrspace(256)* nocapture %P) nounwind {
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| entry:
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| ; CHECK: lock
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| ; CHECK:	cmpxchgl	%{{.*}}, %gs:(%{{.*}})
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| 
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|   %0 = cmpxchg i32 addrspace(256)* %P, i32 0, i32 1 monotonic
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|   ret void
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| }
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