blob: b433297bba6f294fd5ee87a3693e28c298b89e8a [file] [log] [blame]
; 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 -gvn -S | FileCheck %s
define i64 @test() {
%1 = tail call i8* @malloc(i64 mul (i64 4, i64 ptrtoint (i64* getelementptr (i64* null, i64 1) to i64))) ; <i8*> [#uses=2]
store i8 42, i8* %1
%X = bitcast i8* %1 to i64* ; <i64*> [#uses=1]
%Y = load i64* %X ; <i64> [#uses=1]
ret i64 %Y
; CHECK: %Y = load i64* %X
; CHECK: ret i64 %Y
declare noalias i8* @malloc(i64)