[RISC-V] RISC-V: Add implication for M extension.

That M implies Zmmul.

gcc/ChangeLog:

	* common/config/riscv/riscv-common.cc: M implies Zmmul.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/attribute-15.c: Add _zmmul1p0 to arch string.
	* gcc.target/riscv/attribute-16.c: Ditto.
	* gcc.target/riscv/attribute-17.c: Ditto.
	* gcc.target/riscv/attribute-18.c: Ditto.
	* gcc.target/riscv/attribute-19.c: Ditto.
	* gcc.target/riscv/pr110696.c: Ditto.
	* gcc.target/riscv/target-attr-01.c: Ditto.
	* gcc.target/riscv/target-attr-02.c: Ditto.
	* gcc.target/riscv/target-attr-03.c: Ditto.
	* gcc.target/riscv/target-attr-04.c: Ditto.
	* gcc.target/riscv/target-attr-08.c: Ditto.
	* gcc.target/riscv/target-attr-11.c: Ditto.
	* gcc.target/riscv/target-attr-14.c: Ditto.
	* gcc.target/riscv/target-attr-15.c: Ditto.
	* gcc.target/riscv/target-attr-16.c: Ditto.
	* gcc.target/riscv/rvv/base/pr114352-1.c: Likewise.
	* gcc.target/riscv/rvv/base/pr114352-3.c: Likewise.
	* gcc.dg/pr90838.c: Fix search string for rv64.

	    Co-Authored-By: Jeff Law  <jlaw@ventanamicro.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc
index 2adebe0..60595a3 100644
--- a/gcc/common/config/riscv/riscv-common.cc
+++ b/gcc/common/config/riscv/riscv-common.cc
@@ -75,6 +75,8 @@ struct riscv_implied_info_t
 /* Implied ISA info, must end with NULL sentinel.  */
 static const riscv_implied_info_t riscv_implied_info[] =
 {
+  {"m", "zmmul"},
+
   {"d", "f"},
   {"f", "zicsr"},
   {"d", "zicsr"},