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major bjit improvements #1227

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Merged
merged 10 commits into from
Jun 8, 2016
Merged

major bjit improvements #1227

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ce69b81
bjit: change PP sizes and some misc minor improvements
undingen May 26, 2016
031526a
bjit: let OSR handle multiple loops
undingen May 26, 2016
4253de6
bjit: directly emit 'is' and 'is not' comparisons
undingen May 26, 2016
dc85d00
bjit: make nonzeroHelper return a borrowed reference
undingen May 29, 2016
a9a9c6c
bjit: use r12 and r15
undingen May 30, 2016
b022674
bjit: reenable local block var optimization
undingen May 27, 2016
75b794a
bjit: allocate code block using mmap
undingen May 26, 2016
ce2d965
rewriter: cleanup call() using a template and add a can_throw argumen…
undingen Jun 2, 2016
229fb46
rewriter: directly embed additional ref uses and bump uses early when…
undingen Jun 2, 2016
9fd4924
bjit: enable MAP_32BIT
undingen Jun 4, 2016
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5 changes: 5 additions & 0 deletions src/asm_writing/assembler.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -755,6 +755,7 @@ void Assembler::incq(Indirect mem) {
}

assert(src_idx >= 0 && src_idx < 8);
bool needssib = (src_idx == 0b100);

if (rex)
emitRex(rex);
Expand All @@ -763,8 +764,12 @@ void Assembler::incq(Indirect mem) {
assert(-0x80 <= mem.offset && mem.offset < 0x80);
if (mem.offset == 0) {
emitModRM(0b00, 0, src_idx);
if (needssib)
emitSIB(0b00, 0b100, src_idx);
} else {
emitModRM(0b01, 0, src_idx);
if (needssib)
emitSIB(0b00, 0b100, src_idx);
emitByte(mem.offset);
}
}
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