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9c5542c040
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.
llvm-svn: 224257
70 lines
1.5 KiB
LLVM
70 lines
1.5 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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; Test an already canonical branch to make sure we don't flip those.
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define i32 @test0(i32 %X, i32 %Y) {
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%C = icmp eq i32 %X, %Y
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br i1 %C, label %T, label %F, !prof !0
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; CHECK-LABEL: @test0(
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; CHECK: %C = icmp eq i32 %X, %Y
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; CHECK: br i1 %C, label %T, label %F
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T:
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ret i32 12
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F:
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ret i32 123
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}
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define i32 @test1(i32 %X, i32 %Y) {
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%C = icmp ne i32 %X, %Y
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br i1 %C, label %T, label %F, !prof !1
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; CHECK-LABEL: @test1(
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; CHECK: %C = icmp eq i32 %X, %Y
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; CHECK: br i1 %C, label %F, label %T
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T:
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ret i32 12
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F:
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ret i32 123
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}
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define i32 @test2(i32 %X, i32 %Y) {
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%C = icmp ule i32 %X, %Y
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br i1 %C, label %T, label %F, !prof !2
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; CHECK-LABEL: @test2(
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; CHECK: %C = icmp ugt i32 %X, %Y
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; CHECK: br i1 %C, label %F, label %T
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T:
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ret i32 12
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F:
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ret i32 123
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}
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define i32 @test3(i32 %X, i32 %Y) {
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%C = icmp uge i32 %X, %Y
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br i1 %C, label %T, label %F, !prof !3
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; CHECK-LABEL: @test3(
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; CHECK: %C = icmp ult i32 %X, %Y
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; CHECK: br i1 %C, label %F, label %T
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T:
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ret i32 12
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F:
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ret i32 123
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}
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!0 = !{!"branch_weights", i32 1, i32 2}
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!1 = !{!"branch_weights", i32 3, i32 4}
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!2 = !{!"branch_weights", i32 5, i32 6}
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!3 = !{!"branch_weights", i32 7, i32 8}
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; Base case shouldn't change.
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; CHECK: !0 = {{.*}} i32 1, i32 2}
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; Ensure that the branch metadata is reversed to match the reversals above.
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; CHECK: !1 = {{.*}} i32 4, i32 3}
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; CHECK: !2 = {{.*}} i32 6, i32 5}
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; CHECK: !3 = {{.*}} i32 8, i32 7}
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