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This helps keep the legalizer output easier to read, splitting each instructions legalization into a separate block.

This helps make the legalizer output easier to read, splitting each
instructions legalization into a separate block.
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llvmbot commented Jun 9, 2025

@llvm/pr-subscribers-llvm-globalisel

Author: David Green (davemgreen)

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This helps keep the legalizer output easier to read, splitting each instructions legalization into a separate block.


Full diff: https://github.com/llvm/llvm-project/pull/143427.diff

1 Files Affected:

  • (modified) llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp (+1-1)
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 83ba71e4c9d49..028bffd1bf5a7 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -118,7 +118,7 @@ LegalizerHelper::LegalizerHelper(MachineFunction &MF, const LegalizerInfo &LI,
 LegalizerHelper::LegalizeResult
 LegalizerHelper::legalizeInstrStep(MachineInstr &MI,
                                    LostDebugLocObserver &LocObserver) {
-  LLVM_DEBUG(dbgs() << "Legalizing: " << MI);
+  LLVM_DEBUG(dbgs() << "\nLegalizing: " << MI);
 
   MIRBuilder.setInstrAndDebugLoc(MI);
 

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LGTM

@Zhenhang1213 Zhenhang1213 merged commit 89f692a into llvm:main Jun 15, 2025
9 checks passed
@davemgreen davemgreen deleted the gh-gi-legalizerdebug branch June 15, 2025 08:47
@davemgreen
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I happened just to be testing it to make sure it hadn't bitrotted. I'm not sure why it was merged in though, it is best to ask before doing that.

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llvm-ci commented Jun 15, 2025

LLVM Buildbot has detected a new failure on builder ppc64le-flang-rhel-clang running on ppc64le-flang-rhel-test while building llvm at step 6 "test-build-unified-tree-check-flang".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/157/builds/30807

Here is the relevant piece of the build log for the reference
Step 6 (test-build-unified-tree-check-flang) failure: test (failure)
******************** TEST 'Flang :: Semantics/modfile75.F90' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/flang -c -fhermetic-module-files -DWHICH=1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90 && /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/flang -c -fhermetic-module-files -DWHICH=2 /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90 && /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/flang -fc1 -fdebug-unparse /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90 | /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90 # RUN: at line 1
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/flang -c -fhermetic-module-files -DWHICH=1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/flang -c -fhermetic-module-files -DWHICH=2 /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/flang -fc1 -fdebug-unparse /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90
error: Semantic errors in /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90:15:11: error: Must be a constant value
    integer(c_int) n
            ^^^^^
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/bin/FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/test/Semantics/modfile75.F90

--

********************


@Zhenhang1213
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I happened just to be testing it to make sure it hadn't bitrotted. I'm not sure why it was merged in though, it is best to ask before doing that.

OK, sorry, it's my fault. I'll pay more attention next time

akuhlens pushed a commit to akuhlens/llvm-project that referenced this pull request Jun 24, 2025
…43427)

This helps keep the legalizer output easier to read, splitting each
instructions legalization into a separate block.
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