mirror of
https://github.com/c64scene-ar/llvm-6502.git
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08e687e684
Verify that debug info intrinsic arguments are valid. (These checks
will not recurse through the full debug info graph, so they don't need
to be cordoned of in `DebugInfoVerifier`.)
With those checks in place, changing the `DbgIntrinsicInst` accessors to
downcast to `MDLocalVariable` and `MDExpression` is natural (added isa
specializations in `Metadata.h` to support this).
Added tests to `test/Verifier` for the new -verify checks, and fixed the
debug info in all the in-tree tests.
If you have out-of-tree testcases that have started to fail to -verify,
hopefully the verify checks are helpful. The most likely problem is
that the expression argument is `!{}` (instead of `!MDExpression()`).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232296 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
4.8 KiB
LLVM
108 lines
4.8 KiB
LLVM
; RUN: opt -S -loop-rotate < %s | FileCheck %s
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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define i32 @tak(i32 %x, i32 %y, i32 %z) nounwind ssp {
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; CHECK-LABEL: define i32 @tak(
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; CHECK: entry
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 %x
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entry:
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br label %tailrecurse
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tailrecurse: ; preds = %if.then, %entry
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%x.tr = phi i32 [ %x, %entry ], [ %call, %if.then ]
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%y.tr = phi i32 [ %y, %entry ], [ %call9, %if.then ]
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%z.tr = phi i32 [ %z, %entry ], [ %call14, %if.then ]
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tail call void @llvm.dbg.value(metadata i32 %x.tr, i64 0, metadata !6, metadata !MDExpression()), !dbg !7
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tail call void @llvm.dbg.value(metadata i32 %y.tr, i64 0, metadata !8, metadata !MDExpression()), !dbg !9
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tail call void @llvm.dbg.value(metadata i32 %z.tr, i64 0, metadata !10, metadata !MDExpression()), !dbg !11
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%cmp = icmp slt i32 %y.tr, %x.tr, !dbg !12
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br i1 %cmp, label %if.then, label %if.end, !dbg !12
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if.then: ; preds = %tailrecurse
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%sub = sub nsw i32 %x.tr, 1, !dbg !14
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%call = tail call i32 @tak(i32 %sub, i32 %y.tr, i32 %z.tr), !dbg !14
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%sub6 = sub nsw i32 %y.tr, 1, !dbg !14
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%call9 = tail call i32 @tak(i32 %sub6, i32 %z.tr, i32 %x.tr), !dbg !14
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%sub11 = sub nsw i32 %z.tr, 1, !dbg !14
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%call14 = tail call i32 @tak(i32 %sub11, i32 %x.tr, i32 %y.tr), !dbg !14
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br label %tailrecurse
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if.end: ; preds = %tailrecurse
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br label %return, !dbg !16
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return: ; preds = %if.end
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ret i32 %z.tr, !dbg !17
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}
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@channelColumns = external global i64
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@horzPlane = external global i8*, align 8
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define void @FindFreeHorzSeg(i64 %startCol, i64 %row, i64* %rowStart) {
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; Ensure that the loop increment basic block is rotated into the tail of the
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; body, even though it contains a debug intrinsic call.
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; CHECK-LABEL: define void @FindFreeHorzSeg(
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; CHECK: %dec = add
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; CHECK-NEXT: tail call void @llvm.dbg.value
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; CHECK: %cmp = icmp
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; CHECK: br i1 %cmp
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; CHECK: phi i64 [ %{{[^,]*}}, %{{[^,]*}} ]
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; CHECK-NEXT: br label %for.end
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entry:
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br label %for.cond
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for.cond:
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%i.0 = phi i64 [ %startCol, %entry ], [ %dec, %for.inc ]
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%cmp = icmp eq i64 %i.0, 0
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br i1 %cmp, label %for.end, label %for.body
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for.body:
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%0 = load i64, i64* @channelColumns, align 8
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%mul = mul i64 %0, %row
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%add = add i64 %mul, %i.0
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%1 = load i8*, i8** @horzPlane, align 8
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%arrayidx = getelementptr inbounds i8, i8* %1, i64 %add
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%2 = load i8, i8* %arrayidx, align 1
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%tobool = icmp eq i8 %2, 0
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br i1 %tobool, label %for.inc, label %for.end
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for.inc:
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%dec = add i64 %i.0, -1
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tail call void @llvm.dbg.value(metadata i64 %dec, i64 0, metadata !MDLocalVariable(tag: DW_TAG_auto_variable), metadata !MDExpression())
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br label %for.cond
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for.end:
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%add1 = add i64 %i.0, 1
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store i64 %add1, i64* %rowStart, align 8
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ret void
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}
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!llvm.module.flags = !{!20}
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!llvm.dbg.sp = !{!0}
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!0 = !MDSubprogram(name: "tak", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !18, scope: !1, type: !3, function: i32 (i32, i32, i32)* @tak)
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!1 = !MDFile(filename: "/Volumes/Lalgate/cj/llvm/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame/recursive.c", directory: "/Volumes/Lalgate/cj/D/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame")
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!2 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 125492)", isOptimized: true, emissionKind: 0, file: !18, enums: !19, retainedTypes: !19)
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!3 = !MDSubroutineType(types: !4)
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!4 = !{!5}
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!5 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!6 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 32, arg: 0, scope: !0, file: !1, type: !5)
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!7 = !MDLocation(line: 32, column: 13, scope: !0)
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!8 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "y", line: 32, arg: 0, scope: !0, file: !1, type: !5)
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!9 = !MDLocation(line: 32, column: 20, scope: !0)
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!10 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "z", line: 32, arg: 0, scope: !0, file: !1, type: !5)
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!11 = !MDLocation(line: 32, column: 27, scope: !0)
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!12 = !MDLocation(line: 33, column: 3, scope: !13)
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!13 = distinct !MDLexicalBlock(line: 32, column: 30, file: !18, scope: !0)
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!14 = !MDLocation(line: 34, column: 5, scope: !15)
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!15 = distinct !MDLexicalBlock(line: 33, column: 14, file: !18, scope: !13)
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!16 = !MDLocation(line: 36, column: 3, scope: !13)
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!17 = !MDLocation(line: 37, column: 1, scope: !13)
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!18 = !MDFile(filename: "/Volumes/Lalgate/cj/llvm/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame/recursive.c", directory: "/Volumes/Lalgate/cj/D/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame")
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!19 = !{i32 0}
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!20 = !{i32 1, !"Debug Info Version", i32 3}
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