Author: Weining Lu Date: 2022-12-05T11:42:41+08:00 New Revision: 47edc70866920693d99e5b31014ba761a796d181
URL: https://github.com/llvm/llvm-project/commit/47edc70866920693d99e5b31014ba761a796d181 DIFF: https://github.com/llvm/llvm-project/commit/47edc70866920693d99e5b31014ba761a796d181.diff LOG: [LoongArch] Specify registers used for exception handling See definition in backend D134709 and the doc [1] for more detail. With the benefit of this change, most libcxx and libcxxabi tests pass. [1]: https://llvm.org/docs/ExceptionHandling.html Reviewed By: xen0n, wangleiat Differential Revision: https://reviews.llvm.org/D139177 Added: clang/test/CodeGen/builtins-loongarch.c Modified: clang/lib/Basic/Targets/LoongArch.h Removed: ################################################################################ diff --git a/clang/lib/Basic/Targets/LoongArch.h b/clang/lib/Basic/Targets/LoongArch.h index 69dc2e9d0471..9a17cc3b4f01 100644 --- a/clang/lib/Basic/Targets/LoongArch.h +++ b/clang/lib/Basic/Targets/LoongArch.h @@ -56,6 +56,14 @@ class LLVM_LIBRARY_VISIBILITY LoongArchTargetInfo : public TargetInfo { ArrayRef<const char *> getGCCRegNames() const override; + int getEHDataRegisterNumber(unsigned RegNo) const override { + if (RegNo == 0) + return 4; + if (RegNo == 1) + return 5; + return -1; + } + ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; bool validateAsmConstraint(const char *&Name, diff --git a/clang/test/CodeGen/builtins-loongarch.c b/clang/test/CodeGen/builtins-loongarch.c new file mode 100644 index 000000000000..3469b1f955d9 --- /dev/null +++ b/clang/test/CodeGen/builtins-loongarch.c @@ -0,0 +1,10 @@ +// RUN: %clang_cc1 -Wall -Wno-unused-but-set-variable -Werror -triple loongarch32 -disable-O0-optnone -emit-llvm -o - %s | opt -S -passes=mem2reg | FileCheck %s +// RUN: %clang_cc1 -Wall -Wno-unused-but-set-variable -Werror -triple loongarch64 -disable-O0-optnone -emit-llvm -o - %s | opt -S -passes=mem2reg | FileCheck %s + +void test_eh_return_data_regno(void) { + // CHECK: store volatile i32 4 + // CHECK: store volatile i32 5 + volatile int res; + res = __builtin_eh_return_data_regno(0); + res = __builtin_eh_return_data_regno(1); +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits