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| author | Die Li <lidie@eswincomputing.com> | 2023-06-03 11:02:09 -0600 |
|---|---|---|
| committer | Jeff Law <jlaw@ventanamicro.com> | 2023-06-03 11:02:57 -0600 |
| commit | e1d2493f5912c340b50f49e4c2d928870faa172b (patch) | |
| tree | 301947585e192c3db62f0bd58e472b4a30d829d3 | |
| parent | d42f3ad0f79619d40e9060c22d8019ebf5cbed3e (diff) | |
| download | gcc-e1d2493f5912c340b50f49e4c2d928870faa172b.zip gcc-e1d2493f5912c340b50f49e4c2d928870faa172b.tar.gz gcc-e1d2493f5912c340b50f49e4c2d928870faa172b.tar.bz2 | |
Remove unnecessary md pattern for TARGET_XTHEADCONDMOV
There are 2 small changes in this patch, but they do not affect the result.
1. Remove unnecessary md pattern for TARGET_XTHEADCONDMOV in thead.md. The operands[4]
in "if_then_else" are always comparison operations, so the generated rtl does not match
the pattern that is expected to be deleted.
2. Change operands[4] from const0_rtx to operands[1] to maintain rtl consistency. Although
when output assembly, only operands[4] CODE will affect the output result.
Signed-off-by: Die Li <lidie@eswincomputing.com>
gcc/ChangeLog:
* config/riscv/thead.md (*th_cond_gpr_mov<GPR:mode><GPR2:mode>): Delete.
| -rw-r--r-- | gcc/config/riscv/thead.md | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/gcc/config/riscv/thead.md b/gcc/config/riscv/thead.md index 0623607..ea37787 100644 --- a/gcc/config/riscv/thead.md +++ b/gcc/config/riscv/thead.md @@ -120,25 +120,12 @@ /* Invert the condition and take else-block. */ rtx_code code = GET_CODE (operands[4]); code = (code == EQ) ? NE : EQ; - operands[4] = gen_rtx_fmt_ee (code, VOIDmode, const0_rtx, const0_rtx); + operands[4] = gen_rtx_fmt_ee (code, VOIDmode, operands[1], const0_rtx); return "th.mv%C4z\t%0,%z3,%1"; } [(set_attr "type" "condmove") (set_attr "mode" "<GPR:MODE>")]) -(define_insn "*th_cond_gpr_mov<GPR:mode><GPR2:mode>" - [(set (match_operand:GPR 0 "register_operand" "=r,r") - (if_then_else:GPR - (match_operand:GPR2 1 "register_operand" "r,r") - (match_operand:GPR 2 "reg_or_0_operand" "rJ,0") - (match_operand:GPR 3 "reg_or_0_operand" "0,rJ")))] - "TARGET_XTHEADCONDMOV" - "@ - th.mvnez\t%0,%z2,%1 - th.mveqz\t%0,%z3,%1" - [(set_attr "type" "condmove") - (set_attr "mode" "<GPR:MODE>")]) - ;; XTheadFmv ;; In RV32, we lack fmv.x.d and fmv.d.x, but XTheadFmv has instructions |