llvm-6502/test/Feature/md_on_instruction.ll
Duncan P. N. Exon Smith 37ac8d3622 IR: Move MDLocation into place
This commit moves `MDLocation`, finishing off PR21433.  There's an
accompanying clang commit for frontend testcases.  I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.

This changes the schema for `DebugLoc` and `DILocation` from:

    !{i32 3, i32 7, !7, !8}

to:

    !MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)

Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226048 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 22:27:36 +00:00

28 lines
1.1 KiB
LLVM

; RUN: llvm-as < %s | llvm-dis | grep " !dbg " | count 4
define i32 @foo() nounwind ssp {
entry:
%retval = alloca i32 ; <i32*> [#uses=2]
call void @llvm.dbg.func.start(metadata !0)
store i32 42, i32* %retval, !dbg !3
br label %0, !dbg !3
; <label>:0 ; preds = %entry
call void @llvm.dbg.region.end(metadata !0)
%1 = load i32* %retval, !dbg !3 ; <i32> [#uses=1]
ret i32 %1, !dbg !3
}
declare void @llvm.dbg.func.start(metadata) nounwind readnone
declare void @llvm.dbg.region.end(metadata) nounwind readnone
!llvm.module.flags = !{!6}
!0 = !{!"0x2e\00foo\00foo\00foo\001\000\001\000\006\000\000\000", i32 0, !1, !2, null, null, null, null} ; [ DW_TAG_subprogram ]
!1 = !{!"0x11\0012\00clang 1.0\001\00\000\00\000", !4, !5, !5, !4, null, null} ; [ DW_TAG_compile_unit ]
!2 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !1} ; [ DW_TAG_base_type ]
!3 = !MDLocation(line: 1, column: 13, scope: !1, inlinedAt: !1)
!4 = !{!"foo.c", !"/tmp"}
!5 = !{i32 0}
!6 = !{i32 1, !"Debug Info Version", i32 2}