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| author | YunQiang Su <syq@gcc.gnu.org> | 2024-06-18 17:03:51 +0800 |
|---|---|---|
| committer | YunQiang Su <syq@gcc.gnu.org> | 2024-06-21 10:53:26 +0800 |
| commit | 7b67ec4b50ae523a1e1be410644abb627daa9590 (patch) | |
| tree | d192f7386aefb8605530da8b8c84ff9bce458fcb /libcpp | |
| parent | 52c112800d9f44457c4832309a48c00945811313 (diff) | |
| download | gcc-7b67ec4b50ae523a1e1be410644abb627daa9590.zip gcc-7b67ec4b50ae523a1e1be410644abb627daa9590.tar.gz gcc-7b67ec4b50ae523a1e1be410644abb627daa9590.tar.bz2 | |
MIPS: Set condmove cost to SET(REG, REG)
On most uarch, the cost condmove is same as other noraml integer,
and it should be COSTS_N_INSNS(1).
In GCC12 or previous, the condmove is always enabled, and from
GCC13, we start to compare the cost.
The generic rtx_cost give the result of COSTS_N_INSN(2).
Let's define it to COSTS_N_INSN(1) in mips_rtx_costs.
gcc
* config/mips/mips.cc(mips_rtx_costs): Set condmove cost.
* config/mips/mips.md(mov<GPR:mode>_on_<MOVECC:mode>,
mov<GPR:mode>_on_<MOVECC:mode>_mips16e2,
mov<GPR:mode>_on_<GPR2:mode>_ne
mov<GPR:mode>_on_<GPR2:mode>_ne_mips16e2): Define name by
remove starting *, so that we can use CODE_FOR_.
gcc/testsuite
* gcc.target/mips/movcc-2.c: Add k?100:1000 test.
Diffstat (limited to 'libcpp')
0 files changed, 0 insertions, 0 deletions