3f8027fb67
This updates transform test cases for ADCE AddDiscriminators AggressiveInstCombine AlignmentFromAssumptions ArgumentPromotion BDCE CalledValuePropagation DCE Reg2Mem WholeProgramDevirt to use the -passes syntax when specifying the pipeline. Given that LLVM_ENABLE_NEW_PASS_MANAGER isn't set to off (which is a deprecated feature) the updated test cases already used the new pass manager, but they were using the legacy syntax when specifying the passes to run. This patch can be seen as a step toward deprecating that interface. This patch also removes some redundant RUN lines. Here I am referring to test cases that had multiple RUN lines verifying both the legacy "-passname" syntax and the new "-passes=passname" syntax. Since we switched the default pass manager to "new PM" both RUN lines have verified the new PM version of the pass (more or less wasting time running the same test twice), unless LLVM_ENABLE_NEW_PASS_MANAGER is set to "off". It is assumed that it is enough to run these tests with the new pass manager now. Differential Revision: https://reviews.llvm.org/D108472
76 lines
3.5 KiB
LLVM
76 lines
3.5 KiB
LLVM
; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s
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; We should not generate discriminators for DWARF versions prior to 4.
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;
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; Original code:
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;
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; int foo(long i) {
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; if (i < 5) return 2; else return 90;
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; }
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;
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; None of the !dbg nodes associated with the if() statement should be
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; altered. If they are, it means that the discriminators pass added a
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; new lexical scope.
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define i32 @foo(i64 %i) #0 !dbg !4 {
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entry:
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%retval = alloca i32, align 4
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%i.addr = alloca i64, align 8
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store i64 %i, i64* %i.addr, align 8
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call void @llvm.dbg.declare(metadata i64* %i.addr, metadata !13, metadata !DIExpression()), !dbg !14
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%0 = load i64, i64* %i.addr, align 8, !dbg !15
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; CHECK: %0 = load i64, i64* %i.addr, align 8, !dbg ![[ENTRY:[0-9]+]]
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%cmp = icmp slt i64 %0, 5, !dbg !15
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; CHECK: %cmp = icmp slt i64 %0, 5, !dbg ![[ENTRY:[0-9]+]]
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br i1 %cmp, label %if.then, label %if.else, !dbg !15
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; CHECK: br i1 %cmp, label %if.then, label %if.else, !dbg ![[ENTRY:[0-9]+]]
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if.then: ; preds = %entry
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store i32 2, i32* %retval, !dbg !15
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br label %return, !dbg !15
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if.else: ; preds = %entry
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store i32 90, i32* %retval, !dbg !15
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br label %return, !dbg !15
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return: ; preds = %if.else, %if.then
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%1 = load i32, i32* %retval, !dbg !17
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ret i32 %1, !dbg !17
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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; We should be able to add discriminators even in the absence of llvm.dbg.cu.
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; When using sample profiles, the front end will generate line tables but it
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; does not generate llvm.dbg.cu to prevent codegen from emitting debug info
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; to the final binary.
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10, !11}
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!llvm.ident = !{!12}
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; CHECK: !{i32 2, !"Dwarf Version", i32 2}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
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!1 = !DIFile(filename: "no-discriminators", directory: ".")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
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; CHECK: ![[FOO:[0-9]+]] = distinct !DISubprogram(name: "foo"
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!5 = !DIFile(filename: "no-discriminators", directory: ".")
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!6 = !DISubroutineType(types: !7)
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!7 = !{!8, !9}
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
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!10 = !{i32 2, !"Dwarf Version", i32 2}
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!11 = !{i32 1, !"Debug Info Version", i32 3}
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!12 = !{!"clang version 3.5.0 "}
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!13 = !DILocalVariable(name: "i", line: 1, arg: 1, scope: !4, file: !5, type: !9)
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!14 = !DILocation(line: 1, scope: !4)
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!15 = !DILocation(line: 2, scope: !16)
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; CHECK: ![[ENTRY]] = !DILocation(line: 2, scope: ![[BLOCK:[0-9]+]])
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!16 = distinct !DILexicalBlock(line: 2, column: 0, file: !1, scope: !4)
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; CHECK: ![[BLOCK]] = distinct !DILexicalBlock(scope: ![[FOO]],{{.*}} line: 2)
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!17 = !DILocation(line: 3, scope: !4)
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