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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=dse -S < %s | FileCheck %s
@global = external constant i8
define void @f() {
; CHECK-LABEL: @f(
; CHECK-NEXT: [[TMP1:%.*]] = call noalias ptr @_Znwm(i64 32)
; CHECK-NEXT: [[TMP2:%.*]] = icmp ugt ptr [[TMP1]], @global
; CHECK-NEXT: call void @llvm.assume(i1 [[TMP2]])
; CHECK-NEXT: ret void
;
%tmp1 = call noalias ptr @_Znwm(i64 32)
%tmp2 = icmp ugt ptr %tmp1, @global
call void @llvm.assume(i1 %tmp2)
store i8 0, ptr %tmp1, align 1
ret void
}
define void @f2() {
; CHECK-LABEL: @f2(
; CHECK-NEXT: [[TMP1:%.*]] = call noalias ptr @_Znwm(i64 32)
; CHECK-NEXT: [[TMP2:%.*]] = icmp ugt ptr [[TMP1]], @global
; CHECK-NEXT: call void @llvm.assume(i1 [[TMP2]])
; CHECK-NEXT: call void @quux(ptr @global)
; CHECK-NEXT: ret void
;
%tmp1 = call noalias ptr @_Znwm(i64 32)
%tmp2 = icmp ugt ptr %tmp1, @global
call void @llvm.assume(i1 %tmp2)
store i8 0, ptr %tmp1, align 1
call void @quux(ptr @global)
ret void
}
declare ptr @_Znwm(i64)
declare void @llvm.assume(i1)
declare void @quux(ptr)
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