66 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			LLVM
		
	
	
	
| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=static < %s | FileCheck %s --check-prefix=CHECK
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| ; RUN: llc -mcpu=atom -mtriple=x86_64-unknown-linux-gnu -relocation-model=static < %s | FileCheck %s --check-prefix=ATOM
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| 
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| @A = external dso_local global [0 x double]
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| 
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| define void @foo(i64 %n) nounwind {
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| ; CHECK-LABEL: foo:
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| ; CHECK:       # %bb.0: # %entry
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| ; CHECK-NEXT:    testq %rdi, %rdi
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| ; CHECK-NEXT:    jle .LBB0_3
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| ; CHECK-NEXT:  # %bb.1: # %for.body.preheader
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| ; CHECK-NEXT:    xorl %eax, %eax
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| ; CHECK-NEXT:    movsd {{.*#+}} xmm0 = mem[0],zero
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| ; CHECK-NEXT:    .p2align 4, 0x90
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| ; CHECK-NEXT:  .LBB0_2: # %for.body
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| ; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
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| ; CHECK-NEXT:    movsd {{.*#+}} xmm1 = mem[0],zero
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| ; CHECK-NEXT:    mulsd %xmm0, %xmm1
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| ; CHECK-NEXT:    movsd %xmm1, A(,%rax,8)
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| ; CHECK-NEXT:    incq %rax
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| ; CHECK-NEXT:    cmpq %rax, %rdi
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| ; CHECK-NEXT:    jne .LBB0_2
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| ; CHECK-NEXT:  .LBB0_3: # %for.end
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| ; CHECK-NEXT:    retq
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| ;
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| ; ATOM-LABEL: foo:
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| ; ATOM:       # %bb.0: # %entry
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| ; ATOM-NEXT:    testq %rdi, %rdi
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| ; ATOM-NEXT:    jle .LBB0_3
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| ; ATOM-NEXT:  # %bb.1: # %for.body.preheader
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| ; ATOM-NEXT:    xorl %eax, %eax
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| ; ATOM-NEXT:    movsd {{.*#+}} xmm0 = mem[0],zero
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| ; ATOM-NEXT:    .p2align 4, 0x90
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| ; ATOM-NEXT:  .LBB0_2: # %for.body
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| ; ATOM-NEXT:    # =>This Inner Loop Header: Depth=1
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| ; ATOM-NEXT:    movsd {{.*#+}} xmm1 = mem[0],zero
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| ; ATOM-NEXT:    mulsd %xmm0, %xmm1
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| ; ATOM-NEXT:    movsd %xmm1, A(,%rax,8)
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| ; ATOM-NEXT:    leaq 1(%rax), %rax
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| ; ATOM-NEXT:    cmpq %rax, %rdi
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| ; ATOM-NEXT:    jne .LBB0_2
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| ; ATOM-NEXT:  .LBB0_3: # %for.end
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| ; ATOM-NEXT:    nop
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| ; ATOM-NEXT:    nop
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| ; ATOM-NEXT:    nop
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| ; ATOM-NEXT:    nop
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| ; ATOM-NEXT:    retq
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| entry:
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|   %cmp5 = icmp sgt i64 %n, 0
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|   br i1 %cmp5, label %for.body, label %for.end
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| 
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| for.body:
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|   %i.06 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
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|   %arrayidx = getelementptr [0 x double], [0 x double]* @A, i64 0, i64 %i.06
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|   %tmp3 = load double, double* %arrayidx, align 8
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|   %mul = fmul double %tmp3, 2.300000e+00
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|   store double %mul, double* %arrayidx, align 8
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|   %inc = add nsw i64 %i.06, 1
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|   %exitcond = icmp eq i64 %inc, %n
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|   br i1 %exitcond, label %for.end, label %for.body
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| 
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| for.end:
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|   ret void
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| }
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