forked from OSchip/llvm-project
38 lines
975 B
Plaintext
38 lines
975 B
Plaintext
|
# RUN: llc -run-pass opt-phis -march=x86-64 -o - %s | FileCheck %s
|
||
|
|
--- |
|
||
|
|
define void @test() {
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!1}
|
||
|
|
!llvm.module.flags = !{!2, !3}
|
||
|
|
!llvm.ident = !{!4}
|
||
|
|
|
||
|
|
!0 = !DIFile(filename: "foo.c", directory: "/bar")
|
||
|
|
!1 = distinct !DICompileUnit(language: DW_LANG_C, file: !0, producer: "My Compiler")
|
||
|
|
!2 = !{i32 2, !"Dwarf Version", i32 4}
|
||
|
|
!3 = !{i32 2, !"Debug Info Version", i32 3}
|
||
|
|
!4 = !{!"My Compiler"}
|
||
|
|
!5 = distinct !DISubprogram(name: "test")
|
||
|
|
!6 = !DILocation(line: 7, column: 11, scope: !5)
|
||
|
|
!7 = !DILocalVariable(name: "l", scope: !5)
|
||
|
|
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: test
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.0:
|
||
|
|
%0:gr32 = IMPLICIT_DEF
|
||
|
|
|
||
|
|
bb.1:
|
||
|
|
%1:gr32 = PHI %0, %bb.0, %2, %bb.1
|
||
|
|
DBG_VALUE debug-use %1, debug-use _, !7, !DIExpression(), debug-location !6
|
||
|
|
%2:gr32 = IMPLICIT_DEF
|
||
|
|
JMP_1 %bb.1
|
||
|
|
...
|
||
|
|
|
||
|
|
# The PHI should be removed since it's only used in a DBG_VALUE
|
||
|
|
# CHECK-LABEL: bb.1:
|
||
|
|
# CHECK-NOT: PHI
|