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 <li...@eswincomputing.com>
gcc/ChangeLog:
* config/riscv/thead.md (*th_cond_gpr_mov<GPR:mode><GPR2:mode>): Delete.
---
gcc/config/riscv/thead.md | 15 +--------------
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/gcc/config/riscv/thead.md b/gcc/config/riscv/thead.md
index 0623607d3dc..ea377872bde 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
--
2.17.1
