2014-03-12 19:29:23 +08:00
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; RUN: llc -mtriple=armv7-linux-gnueabihf %s -o - | FileCheck %s
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; Generated from:
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; void stack_offsets() {
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; asm("" ::: "d8", "d9", "d11", "d13");
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; }
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; Compiled with: "clang -target armv7-linux-gnueabihf -O3"
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; The important point we're checking here is that the .cfi directives describe
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; the layout of the VFP registers correctly. The fact that the numbers are
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; monotonic in memory is also a nice property to have.
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define void @stack_offsets() {
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; CHECK-LABEL: stack_offsets:
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; CHECK: vpush {d13}
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; CHECK: vpush {d11}
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; CHECK: vpush {d8, d9}
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; CHECK: .cfi_offset {{269|d13}}, -8
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; CHECK: .cfi_offset {{267|d11}}, -16
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; CHECK: .cfi_offset {{265|d9}}, -24
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; CHECK: .cfi_offset {{264|d8}}, -32
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; CHECK: vpop {d8, d9}
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; CHECK: vpop {d11}
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; CHECK: vpop {d13}
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call void asm sideeffect "", "~{d8},~{d9},~{d11},~{d13}"() #1
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ret void
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!8, !9}
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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
2014-12-16 03:07:53 +08:00
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!0 = !{!"0x11\0012\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/tim/llvm/build/tmp.c] [DW_LANG_C99]
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!1 = !{!"tmp.c", !"/Users/tim/llvm/build"}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00bar\00bar\00\001\000\001\000\006\000\000\001", !1, !5, !6, null, void ()* @stack_offsets, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [bar]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/Users/tim/llvm/build/tmp.c]
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!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{null}
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!8 = !{i32 2, !"Dwarf Version", i32 4}
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!9 = !{i32 1, !"Debug Info Version", i32 2}
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2014-03-12 19:29:23 +08:00
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