llvm/test/Transforms/InstCombine/load-combine-metadata-2.ll
Artur Pilipenko bf7f89f132 Preserve load alignment and dereferenceable metadata during some transformations
Reviewed By: hfinkel

Differential Revision: http://reviews.llvm.org/D13953


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251809 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-02 17:53:51 +00:00

20 lines
540 B
LLVM

; RUN: opt -instcombine -S < %s | FileCheck %s
target datalayout = "e-m:e-p:64:64:64-i64:64-f80:128-n8:16:32:64-S128"
; CHECK-LABEL: @test_load_load_combine_metadata(
; Check that align metadata is combined
; CHECK: load i32*, i32** %0
; CHECK-SAME: !align ![[ALIGN:[0-9]+]]
define void @test_load_load_combine_metadata(i32**, i32**, i32**) {
%a = load i32*, i32** %0, !align !0
%b = load i32*, i32** %0, !align !1
store i32 0, i32* %a
store i32 0, i32* %b
ret void
}
; CHECK: ![[ALIGN]] = !{i64 4}
!0 = !{i64 4}
!1 = !{i64 8}