[llvm] [RISCV][TTI] Use processShuffleMask for shuffle legalization estimate (PR #136191)

Tue Apr 22 10:57:27 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `fuchsia-x86_64-linux` running on `fuchsia-debian-64-us-central1-b-1` while building `llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/11/builds/13541

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/fuchsia-linux.py ...' (failure)
...
[2284/5082] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/PassPlugin.cpp.o
[2285/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVRegisterBankInfo.cpp.o
[2286/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/PPCTargetParser.cpp.o
[2287/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/LoongArchTargetParser.cpp.o
[2288/5082] Building CXX object lib/Target/RISCV/AsmParser/CMakeFiles/LLVMRISCVAsmParser.dir/RISCVAsmParser.cpp.o
[2289/5082] Building CXX object lib/AsmParser/CMakeFiles/LLVMAsmParser.dir/LLLexer.cpp.o
[2290/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/CSKYTargetParser.cpp.o
[2291/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVCallLowering.cpp.o
[2292/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVZacasABIFix.cpp.o
[2293/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o
FAILED: lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gv96sp64/lib/Target/RISCV -I/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV -I/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gv96sp64/include -I/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -ffat-lto-objects -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gv96sp64=../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -O3 -DNDEBUG -fvisibility=default  -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -std=c++17 -MD -MT lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o -MF lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o.d -o lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp:710:11: error: no matching function for call to 'costShuffleViaSplitting'
  710 |           costShuffleViaSplitting(*this, LT.second, FVTp, Mask, CostKind);
      |           ^~~~~~~~~~~~~~~~~~~~~~~
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp:392:24: note: candidate function not viable: 1st argument ('const llvm::RISCVTTIImpl') would lose const qualifier
  392 | static InstructionCost costShuffleViaSplitting(RISCVTTIImpl &TTI, MVT LegalVT,
      |                        ^                       ~~~~~~~~~~~~~~~~~
1 error generated.
[2294/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/GCOV.cpp.o
[2295/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/Host.cpp.o
[2296/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/ArchitectureSet.cpp.o
[2297/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/ARMTargetParser.cpp.o
[2298/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/TargetParser.cpp.o
[2299/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/SubtargetFeature.cpp.o
[2300/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Architecture.cpp.o
[2301/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/RISCVTargetParser.cpp.o
[2302/5082] Building CXX object lib/SandboxIR/CMakeFiles/LLVMSandboxIR.dir/Tracker.cpp.o
[2303/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/PGOCtxProfWriter.cpp.o
[2304/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVO0PreLegalizerCombiner.cpp.o
[2305/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/X86TargetParser.cpp.o
[2306/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/PackedVersion.cpp.o
[2307/5082] Building CXX object lib/Target/AArch64/CMakeFiles/LLVMAArch64CodeGen.dir/AArch64TargetTransformInfo.cpp.o
[2308/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/AArch64TargetParser.cpp.o
[2309/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/PGOCtxProfReader.cpp.o
[2310/5082] Building CXX object lib/ProfileData/Coverage/CMakeFiles/LLVMCoverage.dir/CoverageMappingWriter.cpp.o
[2311/5082] Building CXX object lib/SandboxIR/CMakeFiles/LLVMSandboxIR.dir/Region.cpp.o
[2312/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Platform.cpp.o
[2313/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/RecordVisitor.cpp.o
[2314/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVLegalizerInfo.cpp.o
[2315/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Symbol.cpp.o
[2316/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVPostLegalizerCombiner.cpp.o
[2317/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVPreLegalizerCombiner.cpp.o
[2318/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/ProfileSummaryBuilder.cpp.o
[2319/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/SymbolSet.cpp.o
[2320/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/Triple.cpp.o
[2321/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/MemProf.cpp.o
[2322/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Target.cpp.o
[2323/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/RISCVISAInfo.cpp.o
Step 6 (build) failure: build (failure)
...
[2284/5082] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/PassPlugin.cpp.o
[2285/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVRegisterBankInfo.cpp.o
[2286/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/PPCTargetParser.cpp.o
[2287/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/LoongArchTargetParser.cpp.o
[2288/5082] Building CXX object lib/Target/RISCV/AsmParser/CMakeFiles/LLVMRISCVAsmParser.dir/RISCVAsmParser.cpp.o
[2289/5082] Building CXX object lib/AsmParser/CMakeFiles/LLVMAsmParser.dir/LLLexer.cpp.o
[2290/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/CSKYTargetParser.cpp.o
[2291/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVCallLowering.cpp.o
[2292/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVZacasABIFix.cpp.o
[2293/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o
FAILED: lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gv96sp64/lib/Target/RISCV -I/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV -I/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gv96sp64/include -I/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -ffat-lto-objects -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gv96sp64=../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -O3 -DNDEBUG -fvisibility=default  -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -std=c++17 -MD -MT lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o -MF lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o.d -o lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVTargetTransformInfo.cpp.o -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp:710:11: error: no matching function for call to 'costShuffleViaSplitting'
  710 |           costShuffleViaSplitting(*this, LT.second, FVTp, Mask, CostKind);
      |           ^~~~~~~~~~~~~~~~~~~~~~~
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp:392:24: note: candidate function not viable: 1st argument ('const llvm::RISCVTTIImpl') would lose const qualifier
  392 | static InstructionCost costShuffleViaSplitting(RISCVTTIImpl &TTI, MVT LegalVT,
      |                        ^                       ~~~~~~~~~~~~~~~~~
1 error generated.
[2294/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/GCOV.cpp.o
[2295/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/Host.cpp.o
[2296/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/ArchitectureSet.cpp.o
[2297/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/ARMTargetParser.cpp.o
[2298/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/TargetParser.cpp.o
[2299/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/SubtargetFeature.cpp.o
[2300/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Architecture.cpp.o
[2301/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/RISCVTargetParser.cpp.o
[2302/5082] Building CXX object lib/SandboxIR/CMakeFiles/LLVMSandboxIR.dir/Tracker.cpp.o
[2303/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/PGOCtxProfWriter.cpp.o
[2304/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVO0PreLegalizerCombiner.cpp.o
[2305/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/X86TargetParser.cpp.o
[2306/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/PackedVersion.cpp.o
[2307/5082] Building CXX object lib/Target/AArch64/CMakeFiles/LLVMAArch64CodeGen.dir/AArch64TargetTransformInfo.cpp.o
[2308/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/AArch64TargetParser.cpp.o
[2309/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/PGOCtxProfReader.cpp.o
[2310/5082] Building CXX object lib/ProfileData/Coverage/CMakeFiles/LLVMCoverage.dir/CoverageMappingWriter.cpp.o
[2311/5082] Building CXX object lib/SandboxIR/CMakeFiles/LLVMSandboxIR.dir/Region.cpp.o
[2312/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Platform.cpp.o
[2313/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/RecordVisitor.cpp.o
[2314/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVLegalizerInfo.cpp.o
[2315/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Symbol.cpp.o
[2316/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVPostLegalizerCombiner.cpp.o
[2317/5082] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/GISel/RISCVPreLegalizerCombiner.cpp.o
[2318/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/ProfileSummaryBuilder.cpp.o
[2319/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/SymbolSet.cpp.o
[2320/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/Triple.cpp.o
[2321/5082] Building CXX object lib/ProfileData/CMakeFiles/LLVMProfileData.dir/MemProf.cpp.o
[2322/5082] Building CXX object lib/TextAPI/CMakeFiles/LLVMTextAPI.dir/Target.cpp.o
[2323/5082] Building CXX object lib/TargetParser/CMakeFiles/LLVMTargetParser.dir/RISCVISAInfo.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/136191