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38 lines
959 B
YAML
38 lines
959 B
YAML
# RUN: llc -run-pass opt-phis -mtriple=x86_64-- -o - %s | FileCheck %s
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--- |
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define void @test() {
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ret void
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}
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!llvm.dbg.cu = !{!1}
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!llvm.module.flags = !{!2, !3}
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!llvm.ident = !{!4}
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!0 = !DIFile(filename: "foo.c", directory: "/bar")
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!1 = distinct !DICompileUnit(language: DW_LANG_C, file: !0, producer: "My Compiler")
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!2 = !{i32 2, !"Dwarf Version", i32 4}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{!"My Compiler"}
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!5 = distinct !DISubprogram(name: "test")
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!6 = !DILocation(line: 7, column: 11, scope: !5)
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!7 = !DILocalVariable(name: "l", scope: !5)
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...
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---
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name: test
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:gr32 = IMPLICIT_DEF
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bb.1:
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%1:gr32 = PHI %0, %bb.0, %2, %bb.1
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DBG_VALUE %1, _, !7, !DIExpression(), debug-location !6
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%2:gr32 = IMPLICIT_DEF
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JMP_1 %bb.1
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...
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# The PHI should be removed since it's only used in a DBG_VALUE
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# CHECK-LABEL: bb.1:
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# CHECK-NOT: PHI
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