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flang][debug] Run AddDebugInfo before TargetRewrite. #114418

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Merged
merged 3 commits into from
Nov 5, 2024
Merged

flang][debug] Run AddDebugInfo before TargetRewrite. #114418

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0fba70e
[flang][debug] Run AddDebugInfo before TargetRewrite.
abidh Oct 30, 2024
017a895
Add test.
abidh Oct 31, 2024
a1d78e4
Run ExternalNameConversion pass before AddDebugInfo.
abidh Nov 4, 2024
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2 changes: 1 addition & 1 deletion flang/lib/Optimizer/Passes/Pipelines.cpp
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Expand Up @@ -264,10 +264,10 @@ void createDefaultFIRCodeGenPassPipeline(mlir::PassManager &pm,
addNestedPassToAllTopLevelOperations(pm, fir::createAbstractResultOpt);
fir::addCodeGenRewritePass(
pm, (config.DebugInfo != llvm::codegenoptions::NoDebugInfo));
fir::createDebugPasses(pm, config.DebugInfo, config.OptLevel, inputFilename);
fir::addTargetRewritePass(pm);
fir::addCompilerGeneratedNamesConversionPass(pm);
fir::addExternalNameConversionPass(pm, config.Underscoring);
fir::createDebugPasses(pm, config.DebugInfo, config.OptLevel, inputFilename);

if (config.VScaleMin != 0)
pm.addPass(fir::createVScaleAttr({{config.VScaleMin, config.VScaleMax}}));
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4 changes: 2 additions & 2 deletions flang/test/Driver/mlir-debug-pass-pipeline.f90
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Expand Up @@ -111,10 +111,10 @@

! ALL-NEXT: CodeGenRewrite
! ALL-NEXT: (S) 0 num-dce'd - Number of operations eliminated
! DEBUG-NEXT: AddDebugInfo
! NO-DEBUG-NOT: AddDebugInfo
! ALL-NEXT: TargetRewrite
! ALL-NEXT: CompilerGeneratedNamesConversion
! ALL-NEXT: ExternalNameConversion
! DEBUG-NEXT: AddDebugInfo
! NO-DEBUG-NOT: AddDebugInfo
! ALL: FIRToLLVMLowering
! ALL-NOT: LLVMIRLoweringPass
12 changes: 12 additions & 0 deletions flang/test/Integration/debug-complex-2.f90
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@@ -0,0 +1,12 @@
! RUN: %flang_fc1 -emit-llvm -debug-info-kind=standalone %s -o - | FileCheck %s

! Test that complex return type is correctly represented in debug.
complex function fn(a)
complex, intent(in) :: a
fn = a
end function

! CHECK-DAG: ![[CMPLX:.*]] = !DIBasicType(name: "complex", size: 64, encoding: DW_ATE_complex_float)
! CHECK-DAG: ![[SR_TY:.*]] = !DISubroutineType(cc: DW_CC_normal, types: ![[TYPES:.*]])
! CHECK-DAG: ![[TYPES]] = !{![[CMPLX]], ![[CMPLX]]}
! CHECK-DAG: !DISubprogram(name: "fn"{{.*}}type: ![[SR_TY]]{{.*}})
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