llvm/test/CodeGen/PowerPC/aa-tbaa.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 !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
2014-12-15 19:07:53 +00:00

42 lines
1.2 KiB
LLVM

; RUN: llc -enable-misched -misched=shuffle -enable-aa-sched-mi -use-tbaa-in-sched-mi=0 -post-RA-scheduler=0 -mcpu=ppc64 < %s | FileCheck %s
; REQUIRES: asserts
; -misched=shuffle is NDEBUG only!
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
%"class.llvm::MCOperand" = type { i8, %union.anon.110 }
%union.anon.110 = type { i64 }
define void @foo(i32 %v) {
entry:
%MCOp = alloca %"class.llvm::MCOperand", align 8
br label %next
; CHECK-LABEL: @foo
next:
%sunkaddr18 = ptrtoint %"class.llvm::MCOperand"* %MCOp to i64
%sunkaddr19 = add i64 %sunkaddr18, 8
%sunkaddr20 = inttoptr i64 %sunkaddr19 to double*
store double 0.000000e+00, double* %sunkaddr20, align 8, !tbaa !1
%sunkaddr21 = ptrtoint %"class.llvm::MCOperand"* %MCOp to i64
%sunkaddr22 = add i64 %sunkaddr21, 8
%sunkaddr23 = inttoptr i64 %sunkaddr22 to i32*
store i32 %v, i32* %sunkaddr23, align 8, !tbaa !2
ret void
; Make sure that the 64-bit store comes first, regardless of what TBAA says
; about the two not aliasing!
; CHECK: li [[REG:[0-9]+]], 0
; CHECK: std [[REG]], -[[OFF:[0-9]+]](1)
; CHECK: stw 3, -[[OFF]](1)
; CHECK: blr
}
!0 = !{ !"root" }
!1 = !{ !"set1", !0 }
!2 = !{ !"set2", !0 }