forked from OSchip/llvm-project
				
			
		
			
				
	
	
		
			31 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			LLVM
		
	
	
	
| ; RUN: llc < %s -disable-non-leaf-fp-elim -relocation-model=pic -mtriple=x86_64-apple-darwin | FileCheck %s
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| ; <rdar://problem/8170192>
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| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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| target triple = "x86_64-apple-darwin11.0"
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| 
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| @msg = internal global i8* null                   ; <i8**> [#uses=1]
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| @.str = private constant [2 x i8] c"x\00", align 1 ; <[2 x i8]*> [#uses=1]
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| 
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| define void @test(i8* %p) nounwind optsize ssp {
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| 
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| ; No stack frame, please.
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| ; CHECK:     _test
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| ; CHECK-NOT: pushq %rbp
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| ; CHECK-NOT: movq %rsp, %rbp
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| ; CHECK:     InlineAsm Start
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| 
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| entry:
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|   %0 = icmp eq i8* %p, null                       ; <i1> [#uses=1]
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|   br i1 %0, label %return, label %bb
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| 
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| bb:                                               ; preds = %entry
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|   tail call void asm "mov $1, $0", "=*m,{cx},~{dirflag},~{fpsr},~{flags}"(i8** @msg, i8* getelementptr inbounds ([2 x i8]* @.str, i64 0, i64 0)) nounwind
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|   tail call void @llvm.trap()
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|   unreachable
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| 
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| return:                                           ; preds = %entry
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|   ret void
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| }
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| 
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| declare void @llvm.trap() nounwind
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