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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
46 lines
1.4 KiB
LLVM
46 lines
1.4 KiB
LLVM
; RUN: llc -disable-machine-licm -machine-sink-bfi=true -mtriple=x86_64-apple-darwin < %s | FileCheck %s -check-prefix=MSINK_BFI
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; RUN: llc -disable-machine-licm -machine-sink-bfi=false -mtriple=x86_64-apple-darwin < %s | FileCheck %s -check-prefix=MSINK_NOBFI
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; Test that by changing BlockFrequencyInfo we change the order in which
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; machine-sink looks for sucessor blocks. By not using BFI, both G and B
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; have the same loop depth and no instructions is sinked - B is selected but
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; can't be used as to avoid breaking a non profitable critical edge. By using
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; BFI, "mul" is sinked into the less frequent block G.
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define i32 @sink_freqinfo(i32 %a, i32 %b) nounwind uwtable ssp {
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; MSINK_BFI-LABEL: sink_freqinfo
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; MSINK_BFI: jl
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; MSINK_BFI-NEXT: ## BB#
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; MSINK_BFI-NEXT: imull
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; MSINK_NOBFI-LABEL: sink_freqinfo
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; MSINK_NOBFI: imull
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; MSINK_NOBFI: jl
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entry:
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br label %B
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B:
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%ee = phi i32 [ 0, %entry ], [ %inc, %F ]
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%xx = sub i32 %a, %ee
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%cond0 = icmp slt i32 %xx, 0
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br i1 %cond0, label %F, label %exit, !prof !0
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F:
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%inc = add nsw i32 %xx, 2
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%aa = mul nsw i32 %b, %inc
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%exitcond = icmp slt i32 %inc, %a
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br i1 %exitcond, label %B, label %G, !prof !1
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G:
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%ii = add nsw i32 %aa, %a
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%ll = add i32 %b, 45
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%exitcond2 = icmp sge i32 %ii, %b
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br i1 %exitcond2, label %G, label %exit, !prof !2
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exit:
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ret i32 0
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}
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!0 = !{!"branch_weights", i32 4, i32 1}
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!1 = !{!"branch_weights", i32 128, i32 1}
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!2 = !{!"branch_weights", i32 1, i32 1}
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