Michael Matz
bd93dc6923
x86: Improve cmov handling
...
cmov can accept multi sizes, but is also a OPC_TEST opcode,
deal with this.
2016-05-11 18:54:24 +02:00
Michael Matz
5e47b08dc8
[x86] Fix some asm problems
...
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.
2016-05-09 23:17:47 +02:00
seyko
e260b03686
Allow tcc to understand a setob,... opcodes as alias to seto,...
...
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.
2015-01-06 22:59:19 +03:00
Joe Soroka
1b85b55059
i386-asm: support "pause" opcode
2011-02-24 09:38:13 -08:00
Joe Soroka
bec84fa00a
tccasm: support alternate .type syntaxes
2011-02-24 09:24:02 -08:00
Joe Soroka
15b8a57096
tccpp: treat gas comments in .S files as raw text, not tokens
2011-02-23 15:13:08 -08:00
Joe Soroka
0d9376da70
tccasm: accept bracketed offset expressions
2011-02-01 15:53:48 -08:00
Joe Soroka
47b4cf22cd
tccasm: accept "fmul/fadd st(0),st(n)" (dietlibc ipow/atanh)
2011-02-01 15:49:37 -08:00
Joe Soroka
87d84b7cb8
tccasm: allow one-line prefix+op things like "rep stosb"
2011-02-01 15:37:58 -08:00
Joe Soroka
a25325e9be
tccasm: define __ASSEMBLER__ for .S files, like gcc does
2011-02-01 15:26:21 -08:00
Joe Soroka
6839382480
asmtest: avoid testing against complex nop alignment in gas
...
.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
2011-01-23 16:46:24 -08:00
Joe Soroka
2047f88334
i386-asm: accept retl as a synonym for ret
2011-01-21 01:35:28 -08:00
Joe Soroka
f43fafc680
accept multiple comma separated symbols for .globl/.global directives, like gas does
2011-01-20 02:00:50 -08:00
grischka
045cff28fe
fix asmtest (somehow), update Makefiles
2009-07-18 21:54:51 +02:00
grischka
ea5e81bd6a
new subdirs: include, lib, tests
2009-04-18 15:08:03 +02:00
