diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 4 | ||||
| -rw-r--r-- | gcc/config/i386/sse.md | 4 |
3 files changed, 9 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fdebbd8..e4aa907 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2011-05-31 Alexandre Oliva <aoliva@redhat.com> + * config/i386/i386.c (ix86_rtx_costs): Drop NEG from sub for FMA. + * config/i386/sse.md: Add n to negated FMA pattern names. + +2011-05-31 Alexandre Oliva <aoliva@redhat.com> + * gcc.c (driver_handle_option): Fix disabling of -fcompare-debug. 2011-05-31 Alexandre Oliva <aoliva@redhat.com> diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 85d145a..c4f0b9d 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -29226,12 +29226,12 @@ ix86_rtx_costs (rtx x, int code, int outer_code_i, int *total, bool speed) /* Negate in op0 or op2 is free: FMS, FNMA, FNMS. */ sub = XEXP (x, 0); if (GET_CODE (sub) == NEG) - sub = XEXP (x, 0); + sub = XEXP (sub, 0); *total += rtx_cost (sub, FMA, speed); sub = XEXP (x, 2); if (GET_CODE (sub) == NEG) - sub = XEXP (x, 0); + sub = XEXP (sub, 0); *total += rtx_cost (sub, FMA, speed); return true; } diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md index 058f82b..365fbfa 100644 --- a/gcc/config/i386/sse.md +++ b/gcc/config/i386/sse.md @@ -1731,7 +1731,7 @@ [(set_attr "type" "ssemuladd") (set_attr "mode" "<MODE>")]) -(define_insn "*fma_fmadd_<mode>" +(define_insn "*fma_fnmadd_<mode>" [(set (match_operand:FMAMODE 0 "register_operand" "=x,x,x") (fma:FMAMODE (neg:FMAMODE @@ -1746,7 +1746,7 @@ [(set_attr "type" "ssemuladd") (set_attr "mode" "<MODE>")]) -(define_insn "*fma_fmsub_<mode>" +(define_insn "*fma_fnmsub_<mode>" [(set (match_operand:FMAMODE 0 "register_operand" "=x,x,x") (fma:FMAMODE (neg:FMAMODE |