Commit Graph

9 Commits

Author SHA1 Message Date
Chris Lattner d62adaa54d remove another magic number.
llvm-svn: 100606
2010-04-07 05:27:36 +00:00
Chris Lattner 92aba5a817 propagate cookie management out one layer of function calls.
llvm-svn: 100510
2010-04-06 00:58:50 +00:00
Chris Lattner 59126b2500 report errors through LLVMContext's inline asm handler if available.
llvm-svn: 100509
2010-04-06 00:55:39 +00:00
Chris Lattner 3b21e4d404 Give AsmParser an option to control whether it finalizes
the stream.  New demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
000000000000000b	movl	%eax,(%rsp)
000000000000000e	movl	%eax,0x04(%rsp)
0000000000000012	addq	$0x08,%rsp
0000000000000016	ret

llvm-svn: 100492
2010-04-05 23:15:42 +00:00
Chris Lattner 8900ef1931 add .o file writing for inline asm in llc. Here's a silly
demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
<inline asm>:1:2: error: unrecognized instruction
	abc incl    %eax
	^
LLVM ERROR: Error parsing inline asm

Only problem seems to be that the parser finalizes OutStreamer 
at the end of the first inline asm, which isn't what we want.
For example:

$ cat asm.c
int foo(int X) {
 __asm__ ("incl    %0" : "+r" (X));
 return X;
}
$ clang asm.c -S -o - -emit-llvm | llc
...
	subq	$8, %rsp
	movl	%edi, (%rsp)
	movl	%edi, %eax
	## InlineAsm Start
	incl    %eax
	## InlineAsm End
	movl	%eax, (%rsp)
	movl	%eax, 4(%rsp)
	addq	$8, %rsp
	ret
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
$ 

don't stop at inc!

llvm-svn: 100491
2010-04-05 23:11:24 +00:00
Chris Lattner 0e45d24a4e stringref-ize the MemoryBuffer::get apis. This requires
a co-committed clang patch.

llvm-svn: 100485
2010-04-05 22:42:30 +00:00
Chris Lattner 9efd118938 move uleb/sleb printing into AsmPrinter from DwarfPrinter.
llvm-svn: 100344
2010-04-04 19:09:29 +00:00
Chris Lattner baa2c972e9 use stringref instead of strtol to avoid errno gymnastics.
llvm-svn: 100341
2010-04-04 18:42:18 +00:00
Chris Lattner 1e15869d1f split inline asm support out to its own .cpp file.
llvm-svn: 100340
2010-04-04 18:34:07 +00:00