diff options
Diffstat (limited to 'gcc/config/i386/i386-expand.c')
| -rw-r--r-- | gcc/config/i386/i386-expand.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/gcc/config/i386/i386-expand.c b/gcc/config/i386/i386-expand.c index 3e6f7d8e..c0924a5 100644 --- a/gcc/config/i386/i386-expand.c +++ b/gcc/config/i386/i386-expand.c @@ -3613,6 +3613,10 @@ ix86_valid_mask_cmp_mode (machine_mode mode) if (TARGET_XOP && !TARGET_AVX512F) return false; + /* HFmode only supports vcmpsh whose dest is mask register. */ + if (TARGET_AVX512FP16 && mode == HFmode) + return true; + /* AVX512F is needed for mask operation. */ if (!(TARGET_AVX512F && VECTOR_MODE_P (mode))) return false; @@ -3634,7 +3638,9 @@ ix86_use_mask_cmp_p (machine_mode mode, machine_mode cmp_mode, { int vector_size = GET_MODE_SIZE (mode); - if (vector_size < 16) + if (cmp_mode == HFmode) + return true; + else if (vector_size < 16) return false; else if (vector_size == 64) return true; @@ -3750,7 +3756,7 @@ ix86_expand_sse_movcc (rtx dest, rtx cmp, rtx op_true, rtx op_false) && GET_MODE_CLASS (cmpmode) == MODE_INT) { gcc_assert (ix86_valid_mask_cmp_mode (mode)); - /* Using vector move with mask register. */ + /* Using scalar/vector move with mask register. */ cmp = force_reg (cmpmode, cmp); /* Optimize for mask zero. */ op_true = (op_true != CONST0_RTX (mode) @@ -3769,8 +3775,13 @@ ix86_expand_sse_movcc (rtx dest, rtx cmp, rtx op_true, rtx op_false) std::swap (op_true, op_false); } - rtx vec_merge = gen_rtx_VEC_MERGE (mode, op_true, op_false, cmp); - emit_insn (gen_rtx_SET (dest, vec_merge)); + if (mode == HFmode) + emit_insn (gen_movhf_mask (dest, op_true, op_false, cmp)); + else + { + rtx vec_merge = gen_rtx_VEC_MERGE (mode, op_true, op_false, cmp); + emit_insn (gen_rtx_SET (dest, vec_merge)); + } return; } else if (vector_all_ones_operand (op_true, mode) |