llvm-project/llvm/test/Transforms/SimplifyCFG/preserve-load-metadata.ll
Roman Lebedev aa2009fe78
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
First step after e1133179587dd895962a2fe4d6eb0cb1e63b5ee2,
in these tests, DomTree is valid afterwards, so mark them as such,
so that they don't regress.

In further steps, SimplifyCFG transforms shall taught to preserve DomTree,
in as small steps as possible.
2020-12-17 01:03:49 +03:00

33 lines
688 B
LLVM

; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -hoist-common-insts=true -S | FileCheck %s
declare void @bar(i32*)
declare void @baz(i32*)
; CHECK-LABEL: @test_load_combine_metadata(
; Check that align metadata is combined
; CHECK: load i32*, i32** %p
; CHECK-SAME: !align ![[ALIGN:[0-9]+]]
; CHECK: t:
; CHECK: f:
define void @test_load_combine_metadata(i1 %c, i32** %p) {
br i1 %c, label %t, label %f
t:
%v1 = load i32*, i32** %p, !align !0
call void @bar(i32* %v1)
br label %cont
f:
%v2 = load i32*, i32** %p, !align !1
call void @baz(i32* %v2)
br label %cont
cont:
ret void
}
; CHECK: ![[ALIGN]] = !{i64 8}
!0 = !{i64 8}
!1 = !{i64 16}