2014-03-29 11:18:08 +01:00
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; RUN: llc < %s -march=arm64 | FileCheck %s
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define void @caller(i32* nocapture %p, i32 %a, i32 %b) nounwind optsize ssp {
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; CHECK-NOT: stp
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; CHECK: b {{_callee|callee}}
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; CHECK-NOT: ldp
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; CHECK: ret
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%1 = icmp eq i32 %b, 0
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br i1 %1, label %3, label %2
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tail call fastcc void @callee(i32* %p, i32 %a) optsize
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br label %3
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ret void
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}
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define internal fastcc void @callee(i32* nocapture %p, i32 %a) nounwind optsize noinline ssp {
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store volatile i32 %a, i32* %p, align 4, !tbaa !0
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ret void
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}
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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.
llvm-svn: 224257
2014-12-15 20:07:53 +01:00
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!0 = !{!"int", !1}
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!1 = !{!"omnipotent char", !2}
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!2 = !{!"Simple C/C++ TBAA"}
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