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op=[ASHIFT, ASHIFTRT, LSHIFTRT, ROTATE, ROTATERT] Conditional op, if zero rd = (rc == 0) ? (rs1 op rs2) : rs1 --> czero.nez rd, rs2, rc op rd, rs1, rd Conditional op, if non-zero rd = (rc != 0) ? (rs1 op rs2) : rs1 --> czero.eqz rd, rs2, rc op rd, rs1, rd gcc/ChangeLog: * ifcvt.cc (noce_cond_zero_binary_op_supported): Add support for shift like op. gcc/testsuite/ChangeLog: * gcc.target/riscv/zicond_ifcvt_opt.c: Add tests for shift like op. Co-authored-by: Xiao Zeng<zengxiao@eswincomputing.com>
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