58 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			58 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			LLVM
		
	
	
	
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
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define void @t() nounwind ssp {
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; CHECK-LABEL: t:
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entry:
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  br i1 undef, label %return, label %if.end.i
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if.end.i:                                         ; preds = %entry
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  %tmp7.i = load i32, i32* undef, align 4
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  br i1 undef, label %return, label %if.end
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if.end:                                           ; preds = %if.end.i
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; CHECK: %if.end
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; CHECK: movl (%{{.*}}), [[REG:%[a-z]+]]
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; CHECK-NOT: movl [[REG]], [[REG]]
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; CHECK-NEXT: testl [[REG]], [[REG]]
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; CHECK-NEXT: xorl
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  %tmp138 = select i1 undef, i32 0, i32 %tmp7.i
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  %tmp867 = zext i32 %tmp138 to i64
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  br label %while.cond
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while.cond:                                       ; preds = %while.body, %if.end
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  %tmp869 = sub i64 %tmp867, 0
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  %scale2.0 = trunc i64 %tmp869 to i32
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  %cmp149 = icmp eq i32 %scale2.0, 0
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  br i1 %cmp149, label %while.end, label %land.rhs
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land.rhs:                                         ; preds = %while.cond
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  br i1 undef, label %while.body, label %while.end
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while.body:                                       ; preds = %land.rhs
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  br label %while.cond
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while.end:                                        ; preds = %land.rhs, %while.cond
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  br i1 undef, label %cond.false205, label %cond.true190
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cond.true190:                                     ; preds = %while.end
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  br i1 undef, label %cond.false242, label %cond.true225
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cond.false205:                                    ; preds = %while.end
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  unreachable
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cond.true225:                                     ; preds = %cond.true190
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  br i1 undef, label %cond.false280, label %cond.true271
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cond.false242:                                    ; preds = %cond.true190
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  unreachable
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cond.true271:                                     ; preds = %cond.true225
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  unreachable
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cond.false280:                                    ; preds = %cond.true225
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  unreachable
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return:                                           ; preds = %if.end.i, %entry
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  ret void
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}
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