Author: asb Date: Mon Jul 8 02:38:06 2019 New Revision: 365305 URL: http://llvm.org/viewvc/llvm-project?rev=365305&view=rev Log: [RISCV] Specify registers used for exception handling
Implements the handling of __builtin_eh_return_regno(). Differential Revision: https://reviews.llvm.org/D63417 Patch by Edward Jones. Added: cfe/trunk/test/CodeGen/builtins-riscv.c Modified: cfe/trunk/lib/Basic/Targets/RISCV.h Modified: cfe/trunk/lib/Basic/Targets/RISCV.h URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/RISCV.h?rev=365305&r1=365304&r2=365305&view=diff ============================================================================== --- cfe/trunk/lib/Basic/Targets/RISCV.h (original) +++ cfe/trunk/lib/Basic/Targets/RISCV.h Mon Jul 8 02:38:06 2019 @@ -57,6 +57,15 @@ public: ArrayRef<const char *> getGCCRegNames() const override; + int getEHDataRegisterNumber(unsigned RegNo) const override { + if (RegNo == 0) + return 10; + else if (RegNo == 1) + return 11; + else + return -1; + } + ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; bool validateAsmConstraint(const char *&Name, Added: cfe/trunk/test/CodeGen/builtins-riscv.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/builtins-riscv.c?rev=365305&view=auto ============================================================================== --- cfe/trunk/test/CodeGen/builtins-riscv.c (added) +++ cfe/trunk/test/CodeGen/builtins-riscv.c Mon Jul 8 02:38:06 2019 @@ -0,0 +1,10 @@ +// RUN: %clang_cc1 -Wall -Werror -triple riscv32 -disable-O0-optnone -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s +// RUN: %clang_cc1 -Wall -Werror -triple riscv64 -disable-O0-optnone -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s + +void test_eh_return_data_regno() { + // CHECK: store volatile i32 10 + // CHECK: store volatile i32 11 + 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
