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1ef70ff39b
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
127 lines
5.0 KiB
LLVM
127 lines
5.0 KiB
LLVM
; RUN: llc -O1 -filetype=obj -mtriple=x86_64-apple-darwin < %s > %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; RUN: llvm-objdump -r %t | FileCheck -check-prefix=DARWIN %s
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; RUN: llc -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; RUN: llvm-objdump -r %t | FileCheck -check-prefix=LINUX %s
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; PR9493
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; Adapted from the original test case in r127757.
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; We use 'llc -O1' to induce variable 'x' to live in different locations.
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; We don't actually care where 'x' lives, or what exact optimizations get
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; used, as long as 'x' moves around we're fine.
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; // The variable 'x' lives in different locations, so it needs an entry in
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; // the .debug_loc table section, referenced by DW_AT_location.
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; // This ref is not relocatable on Darwin, and is relocatable elsewhere.
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; extern int g(int, int);
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; extern int a;
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;
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; void f(void) {
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; int x;
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; a = g(0, 0);
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; x = 1;
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; while (x & 1) { x *= a; }
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; a = g(x, 0);
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; x = 2;
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; while (x & 2) { x *= a; }
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; a = g(0, x);
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; }
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; // The 'x' variable and its symbol reference location
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_variable
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; CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset] (0x00000000)
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; CHECK-NEXT: DW_AT_name {{.*}} "x"
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; CHECK-NEXT: DW_AT_decl_file
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; CHECK-NEXT: DW_AT_decl_line
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; CHECK-NEXT: DW_AT_type
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; Check that the location contains only 4 ranges - this verifies that the 4th
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; and 5th ranges were successfully merged into a single range.
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; CHECK: .debug_loc contents:
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; CHECK: 0x00000000:
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; CHECK: Beginning address offset:
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; CHECK: Beginning address offset:
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; CHECK: Beginning address offset:
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; CHECK: Beginning address offset:
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; CHECK-NOT: Beginning address offset:
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; Check that we have no relocations in Darwin's output.
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; DARWIN-NOT: X86_64_RELOC{{.*}} __debug_loc
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; Check we have a relocation for the debug_loc entry in Linux output.
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; LINUX: RELOCATION RECORDS FOR [.rela.debug_info]
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; LINUX-NOT: RELOCATION RECORDS
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; LINUX: R_X86_64{{.*}} .debug_loc+0
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; ModuleID = 'simple.c'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32"
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@a = external global i32
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define void @f() nounwind {
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entry:
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%call = tail call i32 @g(i32 0, i32 0) nounwind, !dbg !8
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store i32 %call, i32* @a, align 4, !dbg !8
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tail call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !5, metadata !{!"0x102"}), !dbg !13
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br label %while.body
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while.body: ; preds = %entry, %while.body
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%x.017 = phi i32 [ 1, %entry ], [ %mul, %while.body ]
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%mul = mul nsw i32 %call, %x.017, !dbg !14
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%and = and i32 %mul, 1, !dbg !14
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%tobool = icmp eq i32 %and, 0, !dbg !14
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br i1 %tobool, label %while.end, label %while.body, !dbg !14
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while.end: ; preds = %while.body
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tail call void @llvm.dbg.value(metadata i32 %mul, i64 0, metadata !5, metadata !{!"0x102"}), !dbg !14
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%call4 = tail call i32 @g(i32 %mul, i32 0) nounwind, !dbg !15
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store i32 %call4, i32* @a, align 4, !dbg !15
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tail call void @llvm.dbg.value(metadata i32 2, i64 0, metadata !5, metadata !{!"0x102"}), !dbg !17
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br label %while.body9
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while.body9: ; preds = %while.end, %while.body9
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%x.116 = phi i32 [ 2, %while.end ], [ %mul12, %while.body9 ]
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%mul12 = mul nsw i32 %call4, %x.116, !dbg !18
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%and7 = and i32 %mul12, 2, !dbg !18
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%tobool8 = icmp eq i32 %and7, 0, !dbg !18
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br i1 %tobool8, label %while.end13, label %while.body9, !dbg !18
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while.end13: ; preds = %while.body9
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tail call void @llvm.dbg.value(metadata i32 %mul12, i64 0, metadata !5, metadata !{!"0x102"}), !dbg !18
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%call15 = tail call i32 @g(i32 0, i32 %mul12) nounwind, !dbg !19
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store i32 %call15, i32* @a, align 4, !dbg !19
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ret void, !dbg !20
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}
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declare i32 @g(i32, i32)
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!24}
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!0 = !{!"0x2e\00f\00f\00\004\000\001\000\006\00256\001\004", !23, !1, !3, null, void ()* @f, null, null, !22} ; [ DW_TAG_subprogram ] [line 4] [def] [f]
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!1 = !{!"0x29", !23} ; [ DW_TAG_file_type ]
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!2 = !{!"0x11\0012\00clang version 3.0 (trunk)\001\00\000\00\001", !23, !4, !4, !21, null, null} ; [ DW_TAG_compile_unit ]
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!3 = !{!"0x15\00\000\000\000\000\000\000", !23, !1, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!4 = !{null}
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!5 = !{!"0x100\00x\005\000", !6, !1, !7} ; [ DW_TAG_auto_variable ]
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!6 = !{!"0xb\004\0014\000", !23, !0} ; [ DW_TAG_lexical_block ]
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!7 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !2} ; [ DW_TAG_base_type ]
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!8 = !{i32 6, i32 3, !6, null}
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!12 = !{i32 1}
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!13 = !{i32 7, i32 3, !6, null}
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!14 = !{i32 8, i32 3, !6, null}
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!15 = !{i32 9, i32 3, !6, null}
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!16 = !{i32 2}
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!17 = !{i32 10, i32 3, !6, null}
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!18 = !{i32 11, i32 3, !6, null}
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!19 = !{i32 12, i32 3, !6, null}
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!20 = !{i32 13, i32 1, !6, null}
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!21 = !{!0}
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!22 = !{!5}
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!23 = !{!"simple.c", !"/home/rengol01/temp/tests/dwarf/relocation"}
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!24 = !{i32 1, !"Debug Info Version", i32 2}
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