| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
| |
Also remove the hacky mod/rm byte emission during
disp/imm writing.
|
| |
|
|
|
| |
cmov can accept multi sizes, but is also a OPC_TEST opcode,
deal with this.
|
| |
|
|
|
|
|
|
|
|
|
| |
A bag of assembler fixes, to be either compatible with GAS
(e.g. order of 'test' operands), accept more instructions,
count correct foo{bwlq} variants on x86_64, fix modrm/sib bytes
on x86_64 to not use %rip relative addressing mode, to not use
invalid insns in tests/asmtest.S for x86_64.
Result is that now output of GAS and of tcc on tests/asmtest.S
is mostly the same.
|
| |
|
|
|
|
| |
PS: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20101122/112576.html
This is fix PR8686 for llvm: accepting a 'b' suffix at the end
of all the setcc instructions.
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
.align #,0x90 in gas ignores the 0x90 and outputs any kind
of nop it feels like. the one avoided by this patch is a 7
byte nop, which gas has been doing since at least 1999:
http://sourceware.org/ml/binutils/1999-10/msg00083.html
In order to match what gas does, we would need to make
code alignment target-specific, import a lot of code, and
face the question: exactly which gas {version,target,tune}
combo are we trying to match? see i386_align_code in:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-i386.c?annotate=1.460&cvsroot=src
The smart noppery is turned on via the special casing of 0x90
at line 438 in md_do_align in:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-i386.h?annotate=1.1&cvsroot=src
|
| | |
|
| |
|
|
| |
gas does
|
| | |
|
| |
|
