diff options
| author | Uros Bizjak <ubizjak@gmail.com> | 2018-10-18 18:49:20 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2018-10-18 18:49:20 +0200 |
| commit | b75dff03b70fc3df8bd2a75d0006b96e1304c4c0 (patch) | |
| tree | 8865cfe1bcf546b86aa56c0c55ac559b229ac9bb /gcc/config | |
| parent | 23abcf78747564ca01e1a56a177e21f9169682da (diff) | |
| download | gcc-b75dff03b70fc3df8bd2a75d0006b96e1304c4c0.zip gcc-b75dff03b70fc3df8bd2a75d0006b96e1304c4c0.tar.gz gcc-b75dff03b70fc3df8bd2a75d0006b96e1304c4c0.tar.bz2 | |
i386.c (ix86_emit_fp_unordered_jump): Set JUMP_LABEL to the jump insn.
* config/i386/i386.c (ix86_emit_fp_unordered_jump):
Set JUMP_LABEL to the jump insn.
(ix86_emit_i387_log1p): Use ix86_expand_branch to expand branch.
Predict emitted jump and add label to jump insn.
From-SVN: r265274
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386.c | 46 |
1 files changed, 28 insertions, 18 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 03324c0..e47603e 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -43866,6 +43866,7 @@ void ix86_emit_fp_unordered_jump (rtx label) { rtx reg = gen_reg_rtx (HImode); + rtx_insn *insn; rtx temp; emit_insn (gen_x86_fnstsw_1 (reg)); @@ -43888,10 +43889,9 @@ ix86_emit_fp_unordered_jump (rtx label) temp = gen_rtx_IF_THEN_ELSE (VOIDmode, temp, gen_rtx_LABEL_REF (VOIDmode, label), pc_rtx); - temp = gen_rtx_SET (pc_rtx, temp); - - emit_jump_insn (temp); + insn = emit_jump_insn (gen_rtx_SET (pc_rtx, temp)); predict_jump (REG_BR_PROB_BASE * 10 / 100); + JUMP_LABEL (insn) = label; } /* Output code to perform a log1p XFmode calculation. */ @@ -43902,27 +43902,36 @@ void ix86_emit_i387_log1p (rtx op0, rtx op1) rtx_code_label *label2 = gen_label_rtx (); rtx tmp = gen_reg_rtx (XFmode); - rtx tmp2 = gen_reg_rtx (XFmode); - rtx test; + rtx res = gen_reg_rtx (XFmode); + rtx cst, cstln2, cst1; + rtx_insn *insn; + + cst = const_double_from_real_value + (REAL_VALUE_ATOF ("0.29289321881345247561810596348408353", XFmode), XFmode); + cstln2 = force_reg (XFmode, standard_80387_constant_rtx (4)); /* fldln2 */ 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_insn (gen_fyl2xp1xf3_i387 (op0, op1, tmp2)); + + cst = force_reg (XFmode, cst); + ix86_expand_branch (GE, tmp, cst, label1); + predict_jump (REG_BR_PROB_BASE * 10 / 100); + insn = get_last_insn (); + JUMP_LABEL (insn) = label1; + + emit_insn (gen_fyl2xp1xf3_i387 (res, op1, cstln2)); emit_jump (label2); emit_label (label1); - emit_move_insn (tmp, CONST1_RTX (XFmode)); - emit_insn (gen_addxf3 (tmp, op1, tmp)); - emit_insn (gen_fyl2xxf3_i387 (op0, tmp, tmp2)); + LABEL_NUSES (label1) = 1; + + cst1 = force_reg (XFmode, CONST1_RTX (XFmode)); + emit_insn (gen_rtx_SET (tmp, gen_rtx_PLUS (XFmode, op1, cst1))); + emit_insn (gen_fyl2xxf3_i387 (res, tmp, cstln2)); emit_label (label2); + LABEL_NUSES (label2) = 1; + + emit_move_insn (op0, res); } /* Emit code for round calculation. */ @@ -43939,7 +43948,8 @@ void ix86_emit_i387_round (rtx op0, rtx op1) rtx_code_label *jump_label = gen_label_rtx (); rtx (*floor_insn) (rtx, rtx); rtx (*neg_insn) (rtx, rtx); - rtx insn, tmp; + rtx_insn *insn; + rtx tmp; switch (inmode) { |