1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-24 11:42:57 +01:00
llvm-mirror/test/Transforms/InstCombine/load-combine-metadata-3.ll
Artur Pilipenko 0dd1f670a9 Preserve load alignment and dereferenceable metadata during some transformations
Reviewed By: hfinkel

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

llvm-svn: 251809
2015-11-02 17:53:51 +00:00

20 lines
580 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 dereferenceable metadata is combined
; CHECK: load i32*, i32** %0
; CHECK-SAME: !dereferenceable ![[DEREF:[0-9]+]]
define void @test_load_load_combine_metadata(i32**, i32**, i32**) {
%a = load i32*, i32** %0, !dereferenceable !0
%b = load i32*, i32** %0, !dereferenceable !1
store i32 0, i32* %a
store i32 0, i32* %b
ret void
}
; CHECK: ![[DEREF]] = !{i64 4}
!0 = !{i64 4}
!1 = !{i64 8}