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| author | zherczeg <zherczeg@6239d852-aaf2-0410-a92c-79f79f948069> | 2020-03-02 08:52:01 +0000 |
|---|---|---|
| committer | zherczeg <zherczeg@6239d852-aaf2-0410-a92c-79f79f948069> | 2020-03-02 08:52:01 +0000 |
| commit | 8ff373e4f1f403c516cfca119356e9e3cf45aee3 (patch) | |
| tree | cd73e7d73f926258ef58183ba5f7219f9e13a823 /src/sljit/sljitNativeX86_common.c | |
| parent | 571ad09506eb7a13338056a44139073e7f29ad1a (diff) | |
| download | pcre2-8ff373e4f1f403c516cfca119356e9e3cf45aee3.tar.gz | |
Improve memory clearing in JIT.
git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1233 6239d852-aaf2-0410-a92c-79f79f948069
Diffstat (limited to 'src/sljit/sljitNativeX86_common.c')
| -rw-r--r-- | src/sljit/sljitNativeX86_common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/sljit/sljitNativeX86_common.c b/src/sljit/sljitNativeX86_common.c index 9ced936..74965e3 100644 --- a/src/sljit/sljitNativeX86_common.c +++ b/src/sljit/sljitNativeX86_common.c @@ -2316,6 +2316,10 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compile if (!HAS_FLAGS(op)) { if ((src2 & SLJIT_IMM) && emit_lea_binary(compiler, dst, dstw, src1, src1w, SLJIT_IMM, -src2w) != SLJIT_ERR_UNSUPPORTED) return compiler->error; + if (SLOW_IS_REG(dst) && src2 == dst) { + FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB), dst, 0, dst, 0, src1, src1w)); + return emit_unary(compiler, NEG_rm, dst, 0, dst, 0); + } } if (dst == SLJIT_UNUSED) |