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i386.c (ix86_emit_i387_log1p): Emit fldln2 earlier. 

* config/i386/i386.c (ix86_emit_i387_log1p): Emit fldln2 earlier.

From-SVN: r264373
This commit is contained in:
Uros Bizjak 2018-09-17 22:33:04 +02:00 committed by Uros Bizjak
parent c896ecfeab
commit 71b731be7a
2 changed files with 7 additions and 3 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2018-09-17 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (ix86_emit_i387_log1p): Emit fldln2 earlier.
2018-09-17 David Malcolm <dmalcolm@redhat.com>
* gimple-ssa-sprintf.c (fmtwarn): Update for introduction of

6
gcc/config/i386/i386.c
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@ -43941,20 +43941,20 @@ void ix86_emit_i387_log1p (rtx op0, rtx op1)
rtx test;
emit_insn (gen_absxf2 (tmp, op1));
emit_move_insn (tmp2, standard_80387_constant_rtx (4)); /* fldln2 */
test = gen_rtx_GE (VOIDmode, tmp,
const_double_from_real_value (
REAL_VALUE_ATOF ("0.29289321881345247561810596348408353", XFmode),
XFmode));
emit_jump_insn (gen_cbranchxf4 (test, XEXP (test, 0), XEXP (test, 1), label1));
emit_jump_insn
(gen_cbranchxf4 (test, XEXP (test, 0), XEXP (test, 1), label1));
emit_move_insn (tmp2, standard_80387_constant_rtx (4)); /* fldln2 */
emit_insn (gen_fyl2xp1xf3_i387 (op0, op1, tmp2));
emit_jump (label2);
emit_label (label1);
emit_move_insn (tmp, CONST1_RTX (XFmode));
emit_insn (gen_addxf3 (tmp, op1, tmp));
emit_move_insn (tmp2, standard_80387_constant_rtx (4)); /* fldln2 */
emit_insn (gen_fyl2xxf3_i387 (op0, tmp, tmp2));
emit_label (label2);