From: Aleksandar Rakic <aleksandar.ra...@htecgroup.com>
There are no platforms nor simulators for MSA and microMIPS R5 so
turning off this support for now.
gcc/ChangeLog:
* config/mips/mips.cc (mips_option_override): Error out for
-mmicromips -mmsa for MIPSr5 and less.
Cherry-picked 1009d6ff7a8d3b56e0224a6b193c5a7b3c29aa5f
from https://github.com/MIPS/gcc
Signed-off-by: Matthew Fortune <matthew.fort...@imgtec.com>
Signed-off-by: Faraz Shahbazker <fshahbaz...@wavecomp.com>
Signed-off-by: Aleksandar Rakic <aleksandar.ra...@htecgroup.com>
---
gcc/config/mips/mips.cc | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/gcc/config/mips/mips.cc b/gcc/config/mips/mips.cc
index 894baa2b7a1..538bf64e333 100644
--- a/gcc/config/mips/mips.cc
+++ b/gcc/config/mips/mips.cc
@@ -20983,6 +20983,7 @@ static void
mips_option_override (void)
{
int i, regno, mode;
+ unsigned int is_micromips;
if (OPTION_SET_P (mips_isa_option))
mips_isa_option_info = &mips_cpu_info_table[mips_isa_option];
@@ -21003,6 +21004,7 @@ mips_option_override (void)
/* Save the base compression state and process flags as though we
were generating uncompressed code. */
mips_base_compression_flags = TARGET_COMPRESSION;
+ is_micromips = TARGET_MICROMIPS;
target_flags &= ~TARGET_COMPRESSION;
mips_base_code_readable = mips_code_readable;
@@ -21247,6 +21249,11 @@ mips_option_override (void)
"-mcompact-branches=never");
}
+ if (is_micromips && mips_isa_rev <= 5 && TARGET_MSA)
+ error ("%qs is incompatible with %qs, %<-mmicromips -mmsa%> is "
+ "only supported for MIPSr6", mips_arch_info->name,
+ "-mmicromips -mmsa");
+
/* Require explicit relocs for MIPS R6 onwards. This enables simplification
of the compact branch and jump support through the backend. */
if (!TARGET_EXPLICIT_RELOCS && mips_isa_rev >= 6)
--
2.34.1
