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| author | Uros Bizjak <ubizjak@gmail.com> | 2015-12-08 09:53:42 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2015-12-08 09:53:42 +0100 |
| commit | e8e1c90f3f856193a85622a0ee4c19b2b22c5a76 (patch) | |
| tree | e5433d8fadd0b2ad5665638b3f55f821c1997396 /gcc | |
| parent | 8d22292eb7d417781a0b4f447058258e9986f31a (diff) | |
| download | gcc-e8e1c90f3f856193a85622a0ee4c19b2b22c5a76.zip gcc-e8e1c90f3f856193a85622a0ee4c19b2b22c5a76.tar.gz gcc-e8e1c90f3f856193a85622a0ee4c19b2b22c5a76.tar.bz2 | |
i386.c (ix86_emit_swsqrtsf): Cleanup infinity filterning code.
* config/i386/i386.c (ix86_emit_swsqrtsf): Cleanup
infinity filterning code.
From-SVN: r231397
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 13 |
2 files changed, 9 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 918cd12..8e9d016 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2015-12-08 Uros Bizjak <ubizjak@gmail.com> + + * config/i386/i386.c (ix86_emit_swsqrtsf): Cleanup + infinity filterning code. + 2015-12-08 Ilya Enkovich <enkovich.gnu@gmail.com> PR tree-optimization/68766 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 1e6969f..e423b3c 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -47827,8 +47827,7 @@ void ix86_emit_swdivsf (rtx res, rtx a, rtx b, machine_mode mode) /* Output code to perform a Newton-Rhapson approximation of a single precision floating point [reciprocal] square root. */ -void ix86_emit_swsqrtsf (rtx res, rtx a, machine_mode mode, - bool recip) +void ix86_emit_swsqrtsf (rtx res, rtx a, machine_mode mode, bool recip) { rtx x0, e0, e1, e2, e3, mthree, mhalf; REAL_VALUE_TYPE r; @@ -47868,12 +47867,8 @@ void ix86_emit_swsqrtsf (rtx res, rtx a, machine_mode mode, /* If (a == 0.0) Filter out infinity to prevent NaN for sqrt(0.0). */ if (!recip) { - rtx zero, mask; - - zero = gen_reg_rtx (mode); - mask = gen_reg_rtx (mode); - - zero = force_reg (mode, CONST0_RTX(mode)); + rtx zero = force_reg (mode, CONST0_RTX(mode)); + rtx mask; /* Handle masked compare. */ if (VECTOR_MODE_P (mode) && GET_MODE_SIZE (mode) == 64) @@ -47885,8 +47880,8 @@ void ix86_emit_swsqrtsf (rtx res, rtx a, machine_mode mode, } else { + mask = gen_reg_rtx (mode); emit_insn (gen_rtx_SET (mask, gen_rtx_NE (mode, zero, a))); - emit_insn (gen_rtx_SET (x0, gen_rtx_AND (mode, x0, mask))); } } |