llvm-6502/test/CodeGen/XCore/dwarf_debug.ll
Duncan P. N. Exon Smith 83902832de Revert "Revert "DI: Fold constant arguments into a single MDString""
This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:01:09 +00:00

40 lines
1.8 KiB
LLVM

; RUN: llc < %s -mtriple=xcore-unknown-unknown -O0 | FileCheck %s
; target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32"
; target triple = "xcore"
; CHECK-LABEL: f
; CHECK: entsp 2
; ...the prologue...
; CHECK: .loc 1 2 0 prologue_end # :2:0
; CHECK: add r0, r0, 1
; CHECK: retsp 2
define i32 @f(i32 %a) {
entry:
%a.addr = alloca i32, align 4
store i32 %a, i32* %a.addr, align 4
call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !11, metadata !{metadata !"0x102"}), !dbg !12
%0 = load i32* %a.addr, align 4, !dbg !12
%add = add nsw i32 %0, 1, !dbg !12
ret i32 %add, !dbg !12
}
declare void @llvm.dbg.declare(metadata, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!0 = metadata !{metadata !"0x11\0012\00\000\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ]
!1 = metadata !{metadata !"", metadata !""}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !"0x2e\00f\00f\00\002\000\001\000\006\00256\000\002", metadata !1, metadata !5, metadata !6, null, i32 (i32)* @f, null, null, metadata !2} ; [ DW_TAG_subprogram ]
!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ]
!7 = metadata !{metadata !8, metadata !8}
!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!10 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
!11 = metadata !{metadata !"0x101\00a\0016777218\000", metadata !4, metadata !5, metadata !8} ; [ DW_TAG_arg_variable ]
!12 = metadata !{i32 2, i32 0, metadata !4, null}