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| author | Kaz Kojima <kkojima@gcc.gnu.org> | 2007-11-22 21:15:19 +0000 |
|---|---|---|
| committer | Kaz Kojima <kkojima@gcc.gnu.org> | 2007-11-22 21:15:19 +0000 |
| commit | cd9a21ca0b5ee9e1c4d5ae0140a0ac26564e5143 (patch) | |
| tree | 35a4ababd2c4fd9267091d756a93dc0e14b056f8 /gcc | |
| parent | 6c01f02b2c8fc4357a2b6337a6b921941fb063a7 (diff) | |
| download | gcc-cd9a21ca0b5ee9e1c4d5ae0140a0ac26564e5143.zip gcc-cd9a21ca0b5ee9e1c4d5ae0140a0ac26564e5143.tar.gz gcc-cd9a21ca0b5ee9e1c4d5ae0140a0ac26564e5143.tar.bz2 | |
sh.md (divsi_inv_m3): Handle zero dividend specially.
* config/sh/sh.md (divsi_inv_m3): Handle zero dividend
specially.
From-SVN: r130357
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/sh/sh.md | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 32c472e..2270e80 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2007-11-22 Kaz Kojima <kkojima@gcc.gnu.org> + + * config/sh/sh.md (divsi_inv_m3): Handle zero dividend + specially. + 2007-11-22 Uros Bizjak <ubizjak@gmail.com> * config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Change checking diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md index 90353b2..00221cc 100644 --- a/gcc/config/sh/sh.md +++ b/gcc/config/sh/sh.md @@ -2471,6 +2471,12 @@ norm32: r25 rtx scratch1 = operands[8]; rtx scratch2 = operands[9]; + if (satisfies_constraint_N (dividend)) + { + emit_move_insn (result, dividend); + DONE; + } + emit_insn (gen_mulsidi3_media (scratch0, inv1, dividend)); emit_insn (gen_mulsidi3_media (scratch1, inv2, dividend)); emit_insn (gen_ashrdi3_media (scratch2, scratch0, GEN_INT (63))); |