llvm/test/CodeGen/Thumb2/thumb2-cmn.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

86 lines
1.8 KiB
LLVM

; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s
; These tests could be improved by 'movs r0, #0' being rematerialized below the
; test as 'mov.w r0, #0'.
define i1 @f1(i32 %a, i32 %b) {
%nb = sub i32 0, %b
%tmp = icmp ne i32 %a, %nb
ret i1 %tmp
}
; CHECK-LABEL: f1:
; CHECK: cmn {{.*}}, r1
define i1 @f2(i32 %a, i32 %b) {
%nb = sub i32 0, %b
%tmp = icmp ne i32 %nb, %a
ret i1 %tmp
}
; CHECK-LABEL: f2:
; CHECK: cmn {{.*}}, r1
define i1 @f3(i32 %a, i32 %b) {
%nb = sub i32 0, %b
%tmp = icmp eq i32 %a, %nb
ret i1 %tmp
}
; CHECK-LABEL: f3:
; CHECK: cmn {{.*}}, r1
define i1 @f4(i32 %a, i32 %b) {
%nb = sub i32 0, %b
%tmp = icmp eq i32 %nb, %a
ret i1 %tmp
}
; CHECK-LABEL: f4:
; CHECK: cmn {{.*}}, r1
define i1 @f5(i32 %a, i32 %b) {
%tmp = shl i32 %b, 5
%nb = sub i32 0, %tmp
%tmp1 = icmp eq i32 %nb, %a
ret i1 %tmp1
}
; CHECK-LABEL: f5:
; CHECK: cmn.w {{.*}}, r1, lsl #5
define i1 @f6(i32 %a, i32 %b) {
%tmp = lshr i32 %b, 6
%nb = sub i32 0, %tmp
%tmp1 = icmp ne i32 %nb, %a
ret i1 %tmp1
}
; CHECK-LABEL: f6:
; CHECK: cmn.w {{.*}}, r1, lsr #6
define i1 @f7(i32 %a, i32 %b) {
%tmp = ashr i32 %b, 7
%nb = sub i32 0, %tmp
%tmp1 = icmp eq i32 %a, %nb
ret i1 %tmp1
}
; CHECK-LABEL: f7:
; CHECK: cmn.w {{.*}}, r1, asr #7
define i1 @f8(i32 %a, i32 %b) {
%l8 = shl i32 %a, 24
%r8 = lshr i32 %a, 8
%tmp = or i32 %l8, %r8
%nb = sub i32 0, %tmp
%tmp1 = icmp ne i32 %a, %nb
ret i1 %tmp1
}
; CHECK-LABEL: f8:
; CHECK: cmn.w {{.*}}, {{.*}}, ror #8
define void @f9(i32 %a, i32 %b) nounwind optsize {
tail call void asm sideeffect "cmn.w r0, r1", ""() nounwind, !srcloc !0
ret void
}
!0 = !{i32 81}
; CHECK-LABEL: f9:
; CHECK: cmn.w r0, r1