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llvm-6502/test/CodeGen/AArch64/fast-isel-branch_weights.ll
Duncan P. N. Exon Smith 1ef70ff39b IR: Make metadata typeless in assembly
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 )
      call void @llvm.foo(metadata !{i32 7}, metadata )
      call void @llvm.foo(metadata , metadata )
      call void @llvm.foo(metadata , metadata )
      call void @llvm.foo(metadata !{metadata !3}, metadata )
      ret void, !bar 
    }
     = metadata !{metadata !2}
     = metadata !{i32* @global}
     = metadata !{metadata !3}
     = metadata !{}

turns into this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata i32 %v, metadata )
      call void @llvm.foo(metadata i32 7, metadata )
      call void @llvm.foo(metadata i32* @global, metadata )
      call void @llvm.foo(metadata , metadata )
      call void @llvm.foo(metadata !{!3}, metadata )
      ret void, !bar 
    }
     = !{!2}
     = !{i32* @global}
     = !{!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
2014-12-15 19:07:53 +00:00

20 lines
638 B
LLVM

; RUN: llc -mtriple=arm64-apple-darwin -aarch64-atomic-cfg-tidy=0 -verify-machineinstrs < %s | FileCheck %s
; RUN: llc -mtriple=arm64-apple-darwin -aarch64-atomic-cfg-tidy=0 -fast-isel -fast-isel-abort -verify-machineinstrs < %s | FileCheck %s
; Test if the BBs are reordred according to their branch weights.
define i64 @branch_weights_test(i64 %a, i64 %b) {
; CHECK-LABEL: branch_weights_test
; CHECK-LABEL: success
; CHECK-LABEL: fail
%1 = icmp ult i64 %a, %b
br i1 %1, label %fail, label %success, !prof !0
fail:
ret i64 -1
success:
ret i64 0
}
!0 = !{!"branch_weights", i32 0, i32 2147483647}