https://gcc.gnu.org/g:f10896c8e5fe34e51ea61aaa4d4aaedb4677ff13
commit r15-1231-gf10896c8e5fe34e51ea61aaa4d4aaedb4677ff13
Author: YunQiang Su <s...@gcc.gnu.org>
Date: Mon Jun 10 14:31:12 2024 +0800
MIPS: Use FPU-enabled tune for mips32/mips64/mips64r2/mips64r3/mips64r5
Currently, the default tune value of mips32 is PROCESSOR_4KC, and
the default tune value of mips64/mips64r2/mips64r3/mips64r5 is
PROCESSOR_5KC. PROCESSOR_4KC and PROCESSOR_5KC are both FPU-less.
Let's use PROCESSOR_24KF1_1 for mips32, and PROCESSOR_5KF for mips64/
mips64r2/mips64r3/mips64r5.
We find this problem when we try to fix gcc.target/mips/movcc-3.c.
gcc:
* config/mips/mips-cpus.def: Use PROCESSOR_24KF1_1 for mips32;
Use PROCESSOR_5KF for mips64/mips64r2/mips64r3/mips64r5.
Diff:
---
gcc/config/mips/mips-cpus.def | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/gcc/config/mips/mips-cpus.def b/gcc/config/mips/mips-cpus.def
index 490195406e78..17bbba42bd62 100644
--- a/gcc/config/mips/mips-cpus.def
+++ b/gcc/config/mips/mips-cpus.def
@@ -42,17 +42,17 @@ MIPS_CPU ("mips4", PROCESSOR_R10000, MIPS_ISA_MIPS4,
PTF_AVOID_BRANCHLIKELY_SIZE
in revisions 2 and earlier, but revision 3 is likely to downgrade
that to a recommendation to avoid the instructions in code that
isn't tuned to a specific processor. */
-MIPS_CPU ("mips32", PROCESSOR_4KC, MIPS_ISA_MIPS32,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
+MIPS_CPU ("mips32", PROCESSOR_24KF1_1, MIPS_ISA_MIPS32,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
MIPS_CPU ("mips32r2", PROCESSOR_74KF2_1, MIPS_ISA_MIPS32R2,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
/* mips32r3 is micromips hense why it uses the M4K processor. */
MIPS_CPU ("mips32r3", PROCESSOR_M4K, MIPS_ISA_MIPS32R3,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
MIPS_CPU ("mips32r5", PROCESSOR_P5600, MIPS_ISA_MIPS32R5,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
MIPS_CPU ("mips32r6", PROCESSOR_I6400, MIPS_ISA_MIPS32R6, 0)
-MIPS_CPU ("mips64", PROCESSOR_5KC, MIPS_ISA_MIPS64,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
+MIPS_CPU ("mips64", PROCESSOR_5KF, MIPS_ISA_MIPS64,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
/* ??? For now just tune the generic MIPS64r2 and above for 5KC as well. */
-MIPS_CPU ("mips64r2", PROCESSOR_5KC, MIPS_ISA_MIPS64R2,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
-MIPS_CPU ("mips64r3", PROCESSOR_5KC, MIPS_ISA_MIPS64R3,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
-MIPS_CPU ("mips64r5", PROCESSOR_5KC, MIPS_ISA_MIPS64R5,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
+MIPS_CPU ("mips64r2", PROCESSOR_5KF, MIPS_ISA_MIPS64R2,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
+MIPS_CPU ("mips64r3", PROCESSOR_5KF, MIPS_ISA_MIPS64R3,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
+MIPS_CPU ("mips64r5", PROCESSOR_5KF, MIPS_ISA_MIPS64R5,
PTF_AVOID_BRANCHLIKELY_ALWAYS)
MIPS_CPU ("mips64r6", PROCESSOR_I6400, MIPS_ISA_MIPS64R6, 0)
/* MIPS I processors. */
