https://github.com/benshi001 created https://github.com/llvm/llvm-project/pull/131976
fixes https://github.com/llvm/llvm-project/issues/131967 >From 163c73d21af736c94f1bb8f8c63caf96e127aba5 Mon Sep 17 00:00:00 2001 From: Ben Shi <benn...@tencent.com> Date: Wed, 19 Mar 2025 13:21:48 +0800 Subject: [PATCH] [clang][CodeGen][AVR] Fix a crash in AVRABIInfo fixes https://github.com/llvm/llvm-project/issues/131967 --- clang/lib/CodeGen/Targets/AVR.cpp | 7 ++++--- clang/test/CodeGen/avr/argument.c | 10 ++++++++++ 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/clang/lib/CodeGen/Targets/AVR.cpp b/clang/lib/CodeGen/Targets/AVR.cpp index 26e2a22f14d1e..d0def86376f89 100644 --- a/clang/lib/CodeGen/Targets/AVR.cpp +++ b/clang/lib/CodeGen/Targets/AVR.cpp @@ -59,7 +59,7 @@ class AVRABIInfo : public DefaultABIInfo { unsigned TySize = getContext().getTypeSize(Ty); // An int8 type argument always costs two registers like an int16. - if (TySize == 8 && NumRegs >= 2) { + if (TySize == 8 && NumRegs >= 2 && Ty->isIntegralOrEnumerationType()) { NumRegs -= 2; return ABIArgInfo::getExtend(Ty); } @@ -135,7 +135,8 @@ class AVRTargetCodeGenInfo : public TargetCodeGenInfo { if (GV->isDeclaration()) return; const auto *FD = dyn_cast_or_null<FunctionDecl>(D); - if (!FD) return; + if (!FD) + return; auto *Fn = cast<llvm::Function>(GV); if (FD->getAttr<AVRInterruptAttr>()) @@ -145,7 +146,7 @@ class AVRTargetCodeGenInfo : public TargetCodeGenInfo { Fn->addFnAttr("signal"); } }; -} +} // namespace std::unique_ptr<TargetCodeGenInfo> CodeGen::createAVRTargetCodeGenInfo(CodeGenModule &CGM, unsigned NPR, diff --git a/clang/test/CodeGen/avr/argument.c b/clang/test/CodeGen/avr/argument.c index 31bf678c05a54..5f4b300f350ae 100644 --- a/clang/test/CodeGen/avr/argument.c +++ b/clang/test/CodeGen/avr/argument.c @@ -114,3 +114,13 @@ struct s15 fooa(char a, char b) { x.arr[1] = b; return x; } + +struct s8_t { + char a; +}; + +// AVR-NOT: {{.*}} signext +// TINY-NOT: {{.*}} signext +char foob(struct s8_t a) { + return a.a + 1; +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
