From 3a50aed09edc5e69080a0e49851acdb874227256 Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Fri, 25 Jun 2021 09:22:28 -0400 Subject: [PATCH] Use right shifts to eliminate redundant test/compare insns on the H8 gcc/ * config/h8300/h8300.c (select_cc_mode): Handle ASHIFTRT and LSHIFTRT. --- gcc/config/h8300/h8300.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/gcc/config/h8300/h8300.c b/gcc/config/h8300/h8300.c index 511c2b28e40..d8b4bfcbdbe 100644 --- a/gcc/config/h8300/h8300.c +++ b/gcc/config/h8300/h8300.c @@ -1947,9 +1947,10 @@ h8300_select_cc_mode (enum rtx_code cond, rtx op0, rtx op1) if (op1 == const0_rtx && (cond == EQ || cond == NE || cond == LT || cond == GE) && (GET_CODE (op0) == PLUS || GET_CODE (op0) == MINUS - || GET_CODE (op0) == NEG || GET_CODE (op0) == AND - || GET_CODE (op0) == IOR || GET_CODE (op0) == XOR - || GET_CODE (op0) == NOT || GET_CODE (op0) == ASHIFT + || GET_CODE (op0) == NEG || GET_CODE (op0) == AND + || GET_CODE (op0) == IOR || GET_CODE (op0) == XOR + || GET_CODE (op0) == NOT || GET_CODE (op0) == ASHIFT + || GET_CODE (op0) == ASHIFTRT || GET_CODE (op0) == LSHIFTRT || GET_CODE (op0) == MULT || GET_CODE (op0) == SYMBOL_REF || GET_CODE (op0) == SIGN_EXTEND || GET_CODE (op0) == ZERO_EXTEND || REG_P (op0) || MEM_P (op0)))