diff options
Diffstat (limited to 'gcc/config/arm/arm.c')
| -rw-r--r-- | gcc/config/arm/arm.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index f5c88253204..736e6c8f025 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -11049,6 +11049,23 @@ arm_new_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer_code, case UNSIGNED_FIX: if (TARGET_HARD_FLOAT) { + /* The *combine_vcvtf2i reduces a vmul+vcvt into + a vcvt fixed-point conversion. */ + if (code == FIX && mode == SImode + && GET_CODE (XEXP (x, 0)) == FIX + && GET_MODE (XEXP (x, 0)) == SFmode + && GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT + && vfp3_const_double_for_bits (XEXP (XEXP (XEXP (x, 0), 0), 1)) + > 0) + { + if (speed_p) + *cost += extra_cost->fp[0].toint; + + *cost += rtx_cost (XEXP (XEXP (XEXP (x, 0), 0), 0), mode, + code, 0, speed_p); + return true; + } + if (GET_MODE_CLASS (mode) == MODE_INT) { mode = GET_MODE (XEXP (x, 0)); |