Binutils 2.42 and before don't support Zaamo/Zalrsc. When users specify
both Zaamo and Zalrsc, promote them to 'a' in the -march string.
This does not affect testsuite results for users with old versions of binutils.
Testcases that failed due to 'call'/isa string continue to fail after this PATCH
when using an old version of binutils.
gcc/ChangeLog:
* common/config/riscv/riscv-common.cc: Add 'a' extension to
riscv_combine_info.
Signed-off-by: Patrick O'Neill <patr...@rivosinc.com>
---
We will emit calls if the user only specifies Zaamo or Zalrsc.
To my knowledge there isn't a way to make a testcase for this in dejagnu.
I used the most recent version of the 'a' extension arbitrarily since AFAICT the
version of the extension doesn't affect the combine logic.
---
gcc/common/config/riscv/riscv-common.cc | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/common/config/riscv/riscv-common.cc
b/gcc/common/config/riscv/riscv-common.cc
index 1dc1d9904c7..410e673f5e0 100644
--- a/gcc/common/config/riscv/riscv-common.cc
+++ b/gcc/common/config/riscv/riscv-common.cc
@@ -401,6 +401,7 @@ static const struct riscv_ext_version
riscv_ext_version_table[] =
/* Combine extensions defined in this table */
static const struct riscv_ext_version riscv_combine_info[] =
{
+ {"a", ISA_SPEC_CLASS_20191213, 2, 1},
{"zk", ISA_SPEC_CLASS_NONE, 1, 0},
{"zkn", ISA_SPEC_CLASS_NONE, 1, 0},
{"zks", ISA_SPEC_CLASS_NONE, 1, 0},
--
2.34.1
