595ba1d548
This adds a -debugify-each mode to opt which, when enabled, wraps each
{Module,Function}Pass in a pipeline with logic to add, check, and strip
synthetic debug info for testing purposes.
This mode can be used to test complex pipelines for debug info bugs, or
to collect statistics about the number of debug values & locations lost
throughout various stages of a pipeline.
Patch by Son Tuan Vu!
Differential Revision: https://reviews.llvm.org/D46525
llvm-svn: 332312
86 lines
3.4 KiB
LLVM
86 lines
3.4 KiB
LLVM
; RUN: opt -debugify -S -o - < %s | FileCheck %s
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; RUN: opt -passes=debugify -S -o - < %s | FileCheck %s
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; RUN: opt -debugify -debugify -S -o - < %s 2>&1 | \
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; RUN: FileCheck %s -check-prefix=CHECK-REPEAT
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; RUN: opt -passes=debugify,debugify -S -o - < %s 2>&1 | \
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; RUN: FileCheck %s -check-prefix=CHECK-REPEAT
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; RUN: opt -debugify -check-debugify -S -o - < %s | \
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; RUN: FileCheck %s -implicit-check-not="CheckModuleDebugify: FAIL"
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; RUN: opt -passes=debugify,check-debugify -S -o - < %s | \
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; RUN: FileCheck %s -implicit-check-not="CheckModuleDebugify: FAIL"
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; RUN: opt -enable-debugify -passes=verify -S -o - < %s | \
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; RUN: FileCheck %s -implicit-check-not="CheckModuleDebugify: FAIL"
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; RUN: opt -debugify -strip -check-debugify -S -o - < %s | \
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; RUN: FileCheck %s -check-prefix=CHECK-FAIL
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; RUN: opt -enable-debugify -strip -S -o - < %s | \
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; RUN: FileCheck %s -check-prefix=CHECK-FAIL
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; RUN: opt -enable-debugify -S -o - < %s | FileCheck %s -check-prefix=PASS
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; CHECK-LABEL: define void @foo
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define void @foo() {
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; CHECK: ret void, !dbg ![[RET1:.*]]
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ret void
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}
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; CHECK-LABEL: define i32 @bar
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define i32 @bar() {
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; CHECK: call void @foo(), !dbg ![[CALL1:.*]]
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call void @foo()
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; CHECK: add i32 0, 1, !dbg ![[ADD1:.*]]
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%sum = add i32 0, 1
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; CHECK: ret i32 0, !dbg ![[RET2:.*]]
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ret i32 0
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}
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; CHECK-LABEL: define weak_odr zeroext i1 @baz
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define weak_odr zeroext i1 @baz() {
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; CHECK-NOT: !dbg
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ret i1 false
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}
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; CHECK-DAG: !llvm.dbg.cu = !{![[CU:.*]]}
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; CHECK-DAG: !llvm.debugify = !{![[NUM_INSTS:.*]], ![[NUM_VARS:.*]]}
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; CHECK-DAG: ![[CU]] = distinct !DICompileUnit(language: DW_LANG_C, file: {{.*}}, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: {{.*}})
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; CHECK-DAG: !DIFile(filename: "<stdin>", directory: "/")
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; CHECK-DAG: distinct !DISubprogram(name: "foo", linkageName: "foo", scope: null, file: {{.*}}, line: 1, type: {{.*}}, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: {{.*}}, retainedNodes: {{.*}})
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; CHECK-DAG: distinct !DISubprogram(name: "bar", linkageName: "bar", scope: null, file: {{.*}}, line: 2, type: {{.*}}, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: {{.*}}, retainedNodes: {{.*}})
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; --- DILocations
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; CHECK-DAG: ![[RET1]] = !DILocation(line: 1, column: 1
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; CHECK-DAG: ![[CALL1]] = !DILocation(line: 2, column: 1
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; CHECK-DAG: ![[ADD1]] = !DILocation(line: 3, column: 1
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; CHECK-DAG: ![[RET2]] = !DILocation(line: 4, column: 1
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; --- DILocalVariables
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; CHECK-DAG: ![[TY32:.*]] = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
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; CHECK-DAG: !DILocalVariable(name: "1", scope: {{.*}}, file: {{.*}}, line: 3, type: ![[TY32]])
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; --- Metadata counts
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; CHECK-DAG: ![[NUM_INSTS]] = !{i32 4}
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; CHECK-DAG: ![[NUM_VARS]] = !{i32 1}
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; --- Repeat case
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; CHECK-REPEAT: ModuleDebugify: Skipping module with debug info
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; --- Failure case
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; CHECK-FAIL: ERROR: Instruction with empty DebugLoc in function foo -- ret void
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; CHECK-FAIL: ERROR: Instruction with empty DebugLoc in function bar -- call void @foo()
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; CHECK-FAIL: ERROR: Instruction with empty DebugLoc in function bar -- {{.*}} add i32 0, 1
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; CHECK-FAIL: ERROR: Instruction with empty DebugLoc in function bar -- ret i32 0
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; CHECK-FAIL: WARNING: Missing line 1
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; CHECK-FAIL: WARNING: Missing line 2
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; CHECK-FAIL: WARNING: Missing line 3
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; CHECK-FAIL: WARNING: Missing line 4
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; CHECK-FAIL: ERROR: Missing variable 1
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; CHECK-FAIL: CheckModuleDebugify: FAIL
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; PASS: CheckModuleDebugify: PASS
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