From b2f327b9be81326c9e59fc6da98074c909ac7408 Mon Sep 17 00:00:00 2001 From: Jiawei Date: Wed, 29 Mar 2023 00:55:15 +0800 Subject: [PATCH] RISC-V: Add Z*inx imcompatible check in gcc Z*inx is conflict with float extensions, add incompatible check when z*inx and f extension both enabled. Since all float extension imply f extension and all z*inx extension imply zfinx extension, so we just need to check f with zfinx extension as the base case. Co-Authored by: Kito Cheng gcc/ChangeLog: * common/config/riscv/riscv-common.cc (riscv_subset_list::parse): New check. gcc/testsuite/ChangeLog: * gcc.target/riscv/arch-19.c: New test. --- gcc/common/config/riscv/riscv-common.cc | 5 +++++ gcc/testsuite/gcc.target/riscv/arch-19.c | 4 ++++ 2 files changed, 9 insertions(+) create mode 100644 gcc/testsuite/gcc.target/riscv/arch-19.c diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc index ef221be1eb10..b3c6ec97e7a1 100644 --- a/gcc/common/config/riscv/riscv-common.cc +++ b/gcc/common/config/riscv/riscv-common.cc @@ -1153,6 +1153,11 @@ riscv_subset_list::parse (const char *arch, location_t loc) subset_list->handle_combine_ext (); + if (subset_list->lookup("zfinx") && subset_list->lookup("f")) + error_at (loc, + "%<-march=%s%>: z*inx is conflict with float extensions", + arch); + return subset_list; fail: diff --git a/gcc/testsuite/gcc.target/riscv/arch-19.c b/gcc/testsuite/gcc.target/riscv/arch-19.c new file mode 100644 index 000000000000..83c6e00a7552 --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/arch-19.c @@ -0,0 +1,4 @@ +/* { dg-do compile } */ +/* { dg-options "-march=rv64if_zfinx -mabi=lp64" } */ +int foo() {} +/* { dg-error "'-march=rv64if_zfinx': z\\*inx is conflict with float extensions" "" { target *-*-* } 0 } */ -- 2.47.2