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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; Test to make sure malloc's bitcast does not block detection of a store
; to aliased memory; GVN should not optimize away the load in this program.
; RUN: opt < %s -passes=newgvn -S | FileCheck %s
define i64 @test() {
; CHECK-LABEL: define i64 @test() {
; CHECK-NEXT: [[MUL:%.*]] = mul i64 4, ptrtoint (ptr getelementptr (i64, ptr null, i64 1) to i64)
; CHECK-NEXT: [[TMP1:%.*]] = tail call ptr @malloc(i64 [[MUL]])
; CHECK-NEXT: store i8 42, ptr [[TMP1]], align 1
; CHECK-NEXT: [[Y:%.*]] = load i64, ptr [[TMP1]], align 4
; CHECK-NEXT: ret i64 [[Y]]
;
%mul = mul i64 4, ptrtoint (ptr getelementptr (i64, ptr null, i64 1) to i64)
%1 = tail call ptr @malloc(i64 %mul)
store i8 42, ptr %1
%Y = load i64, ptr %1 ; <i64> [#uses=1]
ret i64 %Y
}
declare noalias ptr @malloc(i64)
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