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[test][DSE] Precommit test for D123162
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | ||
; RUN: opt -passes=dse -S < %s | FileCheck %s | ||
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@global = external constant i8 | ||
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define void @f() { | ||
; CHECK-LABEL: @f( | ||
; CHECK-NEXT: [[TMP1:%.*]] = call noalias i8* @_Znwm(i64 32) | ||
; CHECK-NEXT: [[TMP2:%.*]] = icmp ugt i8* [[TMP1]], @global | ||
; CHECK-NEXT: call void @llvm.assume(i1 [[TMP2]]) | ||
; CHECK-NEXT: store i8 0, i8* [[TMP1]], align 1 | ||
; CHECK-NEXT: ret void | ||
; | ||
%tmp1 = call noalias i8* @_Znwm(i64 32) | ||
%tmp2 = icmp ugt i8* %tmp1, @global | ||
call void @llvm.assume(i1 %tmp2) | ||
store i8 0, i8* %tmp1, align 1 | ||
ret void | ||
} | ||
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declare i8* @_Znwm(i64) | ||
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declare void @llvm.assume(i1) |