forked from OSchip/llvm-project
47 lines
1.7 KiB
LLVM
47 lines
1.7 KiB
LLVM
; RUN: opt -S -codegenprepare < %s | FileCheck %s
|
|
;
|
|
; This test case has been generated by hand but is inspired by the
|
|
; observation that compares that are sunk into the basic blocks where
|
|
; their results are used did not retain their debug locs. This caused
|
|
; sample profiling to attribute code to the wrong source lines.
|
|
;
|
|
; We check that the compare instruction retains its debug loc after
|
|
; it is sunk into other.bb by the codegen prepare pass.
|
|
;
|
|
; CHECK: other.bb:
|
|
; CHECK-NEXT: icmp{{.*}}%x, 0, !dbg ![[MDHANDLE:[0-9]*]]
|
|
; CHECK: ![[MDHANDLE]] = !DILocation(line: 2
|
|
;
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
define i32 @_Z3fooii(i32 %x, i32 %y) !dbg !5 {
|
|
entry:
|
|
%cmp17 = icmp sgt i32 %x, 0, !dbg !6
|
|
br label %other.bb, !dbg !6
|
|
|
|
other.bb:
|
|
br i1 %cmp17, label %exit1.bb, label %exit2.bb, !dbg !7
|
|
|
|
exit1.bb:
|
|
%0 = add i32 %y, 42, !dbg !8
|
|
ret i32 %0, !dbg !8
|
|
|
|
exit2.bb:
|
|
ret i32 44, !dbg !9
|
|
|
|
}
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!3, !4}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2)
|
|
!1 = !DIFile(filename: "test.cpp", directory: "/debuginfo/bug/cgp")
|
|
!2 = !{}
|
|
!3 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!5 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !1, file: !1, line: 1, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
|
|
!6 = !DILocation(line: 2, column: 0, scope: !5)
|
|
!7 = !DILocation(line: 3, column: 0, scope: !5)
|
|
!8 = !DILocation(line: 4, column: 0, scope: !5)
|
|
!9 = !DILocation(line: 5, column: 0, scope: !5)
|