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1ef70ff39b
Now that `Metadata` is typeless, reflect that in the assembly. These
are the matching assembly changes for the metadata/value split in
r223802.
- Only use the `metadata` type when referencing metadata from a call
intrinsic -- i.e., only when it's used as a `Value`.
- Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
when referencing it from call intrinsics.
So, assembly like this:
define @foo(i32 %v) {
call void @llvm.foo(metadata !{i32 %v}, metadata !0)
call void @llvm.foo(metadata !{i32 7}, metadata !0)
call void @llvm.foo(metadata !1, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{metadata !3}, metadata !0)
ret void, !bar !2
}
!0 = metadata !{metadata !2}
!1 = metadata !{i32* @global}
!2 = metadata !{metadata !3}
!3 = metadata !{}
turns into this:
define @foo(i32 %v) {
call void @llvm.foo(metadata i32 %v, metadata !0)
call void @llvm.foo(metadata i32 7, metadata !0)
call void @llvm.foo(metadata i32* @global, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{!3}, metadata !0)
ret void, !bar !2
}
!0 = !{!2}
!1 = !{i32* @global}
!2 = !{!3}
!3 = !{}
I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines). I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.
This is part of PR21532.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.1 KiB
LLVM
44 lines
1.1 KiB
LLVM
; RUN: opt -scoped-noalias -basicaa -gvn -S < %s | FileCheck %s
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define i32 @test1(i32* %p, i32* %q) {
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; CHECK-LABEL: @test1(i32* %p, i32* %q)
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; CHECK: load i32* %p
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; CHECK-NOT: noalias
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !noalias !0
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%b = load i32* %p
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test2(i32* %p, i32* %q) {
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; CHECK-LABEL: @test2(i32* %p, i32* %q)
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; CHECK: load i32* %p, !alias.scope !0
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !alias.scope !0
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%b = load i32* %p, !alias.scope !0
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%c = add i32 %a, %b
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ret i32 %c
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}
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; FIXME: In this case we can do better than intersecting the scopes, and can
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; concatenate them instead. Both loads are in the same basic block, the first
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; makes the second safe to speculatively execute, and there are no calls that may
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; throw in between.
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define i32 @test3(i32* %p, i32* %q) {
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; CHECK-LABEL: @test3(i32* %p, i32* %q)
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; CHECK: load i32* %p, !alias.scope !1
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !alias.scope !1
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%b = load i32* %p, !alias.scope !2
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%c = add i32 %a, %b
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ret i32 %c
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}
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declare i32 @foo(i32*) readonly
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!0 = !{!0}
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!1 = !{!1}
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!2 = !{!0, !1}
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