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[AIX] Disable -gsplit-dwarf as it is unsupported at the moment on AIX #158199

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Merged
merged 5 commits into from
Sep 15, 2025
Merged

[AIX] Disable -gsplit-dwarf as it is unsupported at the moment on AIX #158199

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077a127
Merge branch 'main' into aditya/disable-gsplit-dwarf
aditya-chaudhary1 Sep 15, 2025
821704d
Merge branch 'main' into aditya/disable-gsplit-dwarf
aditya-chaudhary1 Sep 15, 2025
0c187c9
Disable -gsplit-dwarf as it is unsupported at the moment on AIX
Sep 11, 2025
d5433ef
Merge branch 'main' into aditya/disable-gsplit-dwarf
aditya-chaudhary1 Sep 15, 2025
6c2e009
Merge branch 'llvm:main' into aditya/disable-gsplit-dwarf
aditya-chaudhary1 Sep 15, 2025
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7 changes: 7 additions & 0 deletions clang/lib/Driver/ToolChains/Clang.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4393,6 +4393,13 @@ renderDebugOptions(const ToolChain &TC, const Driver &D, const llvm::Triple &T,
// object file generation and no IR generation, -gN should not be needed. So
// allow -gsplit-dwarf with either -gN or IR input.
if (IRInput || Args.hasArg(options::OPT_g_Group)) {
// FIXME: -gsplit-dwarf on AIX is currently unimplemented.
if (TC.getTriple().isOSAIX() && Args.hasArg(options::OPT_gsplit_dwarf)) {
D.Diag(diag::err_drv_unsupported_opt_for_target)
<< Args.getLastArg(options::OPT_gsplit_dwarf)->getSpelling()
<< TC.getTriple().str();
return;
}
Arg *SplitDWARFArg;
DwarfFission = getDebugFissionKind(D, Args, SplitDWARFArg);
if (DwarfFission != DwarfFissionKind::None &&
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12 changes: 12 additions & 0 deletions clang/test/Driver/aix-gsplit-dwarf.c
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@@ -0,0 +1,12 @@
// Verify error message is emitted for `-gsplit-dwarf` on AIX
// as it's unsupported at the moment.

// RUN: not %clang -target powerpc-ibm-aix -gdwarf-4 -gsplit-dwarf %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=UNSUP_OPT_AIX
// RUN: not %clang -target powerpc64-ibm-aix -gdwarf-4 -gsplit-dwarf %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=UNSUP_OPT_AIX64

// UNSUP_OPT_AIX: error: unsupported option '-gsplit-dwarf' for target 'powerpc-ibm-aix'
// UNSUP_OPT_AIX64: error: unsupported option '-gsplit-dwarf' for target 'powerpc64-ibm-aix'

int main(){return 0;}
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