diff options
| author | Uros Bizjak <ubizjak@gmail.com> | 2008-01-05 21:33:33 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2008-01-05 21:33:33 +0100 |
| commit | 5a37a60ccbdcbb5ae1c416d7292a0080f7aa0eb5 (patch) | |
| tree | 432b21da14ac7c67dd2655c28081b966ddaa320c | |
| parent | a6514ef2c04467a5200dd593e54525b895a90f54 (diff) | |
| download | gcc-5a37a60ccbdcbb5ae1c416d7292a0080f7aa0eb5.zip gcc-5a37a60ccbdcbb5ae1c416d7292a0080f7aa0eb5.tar.gz gcc-5a37a60ccbdcbb5ae1c416d7292a0080f7aa0eb5.tar.bz2 | |
i386.c (ix86_builtin_reciprocal): Remove check for TARGET_RECIP.
* config/i386/i386.c (ix86_builtin_reciprocal): Remove check
for TARGET_RECIP.
(ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.
From-SVN: r131342
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 12 |
2 files changed, 13 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 633c096..85cdaca 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-01-05 Uros Bizjak <ubizjak@gmail.com> + + * config/i386/i386.c (ix86_builtin_reciprocal): Remove check + for TARGET_RECIP. + (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion. + 2008-01-05 Richard Sandiford <rsandifo@nildram.co.uk> * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR. diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index f29df8d..2ca2872 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -21466,7 +21466,7 @@ static tree ix86_builtin_reciprocal (unsigned int fn, bool md_fn, bool sqrt ATTRIBUTE_UNUSED) { - if (! (TARGET_SSE_MATH && TARGET_RECIP && !optimize_size + if (! (TARGET_SSE_MATH && !optimize_size && flag_finite_math_only && !flag_trapping_math && flag_unsafe_math_optimizations)) return NULL_TREE; @@ -24239,16 +24239,18 @@ void ix86_emit_swsqrtsf (rtx res, rtx a, enum machine_mode mode, 1.0 / sqrt(a) = 0.5 * rsqrtss(a) * (3.0 - a * rsqrtss(a) * rsqrtss(a)) */ /* Compare a to zero. */ - emit_insn (gen_rtx_SET (VOIDmode, mask, - gen_rtx_NE (mode, zero, a))); + if (!recip) + emit_insn (gen_rtx_SET (VOIDmode, mask, + gen_rtx_NE (mode, zero, a))); /* x0 = 1./sqrt(a) estimate */ emit_insn (gen_rtx_SET (VOIDmode, x0, gen_rtx_UNSPEC (mode, gen_rtvec (1, a), UNSPEC_RSQRT))); /* Filter out infinity. */ - emit_insn (gen_rtx_SET (VOIDmode, x0, - gen_rtx_AND (mode, x0, mask))); + if (!recip) + emit_insn (gen_rtx_SET (VOIDmode, x0, + gen_rtx_AND (mode, x0, mask))); /* e0 = x0 * a */ emit_insn (gen_rtx_SET (VOIDmode, e0, gen_rtx_MULT (mode, x0, a))); |