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Add a testcase for r103135, explicitly representing unknown

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locations in debug line info.

llvm-svn: 103189
This commit is contained in:
Dan Gohman 2010-05-06 17:49:17 +00:00
parent 64f7afeec1
commit 3190e5c292
1 changed files with 36 additions and 0 deletions
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36
test/CodeGen/X86/unknown-location.ll Normal file
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@ -0,0 +1,36 @@
; RUN: llc < %s -asm-verbose=false -march=x86-64 | FileCheck %s
; The divide instruction does not have a debug location. CodeGen should
; represent this in the debug information. This is checked by a check
; for a label between the code for the add and the code for the divide,
; which indicates that the add's location doesn't spill over unto the
; divide.
; CHECK: Ltmp
; CHECK: movl %edx, %r8d
; CHECK-NEXT: leal (%rdi,%rsi), %eax
; CHECK-NEXT: Ltmp
; CHECK-NEXT: cltd
; CHECK-NEXT: idivl %r8d
; CHECK-NEXT: Ltmp
; CHECK-NEXT: addl %ecx, %eax
; CHECK-NEXT: ret
; CHECK-NEXT: Ltmp
define i32 @foo(i32 %w, i32 %x, i32 %y, i32 %z) nounwind {
entry:
%a = add i32 %w, %x, !dbg !8
%b = sdiv i32 %a, %y
%c = add i32 %b, %z, !dbg !8
ret i32 %c, !dbg !8
}
!0 = metadata !{i32 524545, metadata !1, metadata !"x", metadata !2, i32 1, metadata !6} ; [ DW_TAG_arg_variable ]
!1 = metadata !{i32 524334, i32 0, metadata !2, metadata !"foo", metadata !"foo", metadata !"foo", metadata !2, i32 1, metadata !4, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false} ; [ DW_TAG_subprogram ]
!2 = metadata !{i32 524329, metadata !"test.c", metadata !"/dir", metadata !3} ; [ DW_TAG_file_type ]
!3 = metadata !{i32 524305, i32 0, i32 12, metadata !"test.c", metadata !".", metadata !"producer", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
!4 = metadata !{i32 524309, metadata !2, metadata !"", metadata !2, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !5, i32 0, null} ; [ DW_TAG_subroutine_type ]
!5 = metadata !{metadata !6}
!6 = metadata !{i32 524324, metadata !2, metadata !"int", metadata !2, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!7 = metadata !{i32 524299, metadata !1, i32 1, i32 30} ; [ DW_TAG_lexical_block ]
!8 = metadata !{i32 4, i32 3, metadata !7, null}