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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
51 lines
1.4 KiB
LLVM
51 lines
1.4 KiB
LLVM
; RUN: opt < %s -analyze -block-freq | FileCheck %s
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declare void @g(i32 %x)
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; CHECK-LABEL: Printing analysis {{.*}} for function 'branch_weight_0':
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; CHECK-NEXT: block-frequency-info: branch_weight_0
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define void @branch_weight_0(i32 %a) {
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; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
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entry:
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br label %for.body
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; Check that we get 1,4 instead of 0,3.
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; CHECK-NEXT: for.body: float = 4.0,
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for.body:
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%i = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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call void @g(i32 %i)
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%inc = add i32 %i, 1
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%cmp = icmp ugt i32 %inc, %a
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br i1 %cmp, label %for.end, label %for.body, !prof !0
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; CHECK-NEXT: for.end: float = 1.0, int = [[ENTRY]]
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for.end:
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ret void
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}
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!0 = !{!"branch_weights", i32 0, i32 3}
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; CHECK-LABEL: Printing analysis {{.*}} for function 'infinite_loop'
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; CHECK-NEXT: block-frequency-info: infinite_loop
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define void @infinite_loop(i1 %x) {
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; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
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entry:
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br i1 %x, label %for.body, label %for.end, !prof !1
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; Check that the loop scale maxes out at 4096, giving 2048 here.
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; CHECK-NEXT: for.body: float = 2048.0,
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for.body:
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%i = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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call void @g(i32 %i)
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%inc = add i32 %i, 1
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br label %for.body
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; Check that the exit weight is half of entry, since half is lost in the
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; infinite loop above.
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; CHECK-NEXT: for.end: float = 0.5,
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for.end:
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ret void
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}
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!1 = !{!"branch_weights", i32 1, i32 1}
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