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LLVM backend for 6502
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7900779543
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Chris Lattner 7900779543 handle the constant case of vector insertion. For something 
like this:

struct S { float A, B, C, D; };

struct S g;
struct S bar() { 
  struct S A = g;
  ++A.B;
  A.A = 42;
  return A;
}

we now generate:

_bar:                                   ## @bar
## BB#0:                                ## %entry
	movq	_g@GOTPCREL(%rip), %rax
	movss	12(%rax), %xmm0
	pshufd	$16, %xmm0, %xmm0
	movss	4(%rax), %xmm2
	movss	8(%rax), %xmm1
	pshufd	$16, %xmm1, %xmm1
	unpcklps	%xmm0, %xmm1
	addss	LCPI1_0(%rip), %xmm2
	pshufd	$16, %xmm2, %xmm2
	movss	LCPI1_1(%rip), %xmm0
	pshufd	$16, %xmm0, %xmm0
	unpcklps	%xmm2, %xmm0
	ret

instead of:

_bar:                                   ## @bar
## BB#0:                                ## %entry
	movq	_g@GOTPCREL(%rip), %rax
	movss	12(%rax), %xmm0
	pshufd	$16, %xmm0, %xmm0
	movss	4(%rax), %xmm2
	movss	8(%rax), %xmm1
	pshufd	$16, %xmm1, %xmm1
	unpcklps	%xmm0, %xmm1
	addss	LCPI1_0(%rip), %xmm2
	movd	%xmm2, %eax
	shlq	$32, %rax
	addq	$1109917696, %rax       ## imm = 0x42280000
	movd	%rax, %xmm0
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112345 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 01:50:57 +00:00
autoconf Remove getsect checks, the result is unused and is broken anyhow. 2010-08-25 08:44:54 +00:00
bindings - Add the LinkerPrivateWeakDefAutoLinkage to the Ada bindings. 2010-08-24 20:00:52 +00:00
cmake Updated CMake library dependencies. Removed unnecessary component name 2010-08-26 02:29:53 +00:00
docs Create the new linker type "linker_private_weak_def_auto". 2010-08-20 22:05:50 +00:00
examples Trailing whitespace. 2010-08-19 20:03:53 +00:00
include Add a prototype of a new peephole optimizing pass that uses LazyValue info to simplify PHIs and select's. 2010-08-27 23:31:36 +00:00
lib handle the constant case of vector insertion. For something 2010-08-28 01:50:57 +00:00
projects Remove bogus link. 2010-07-16 06:33:36 +00:00
runtime Delete a blank line. 2010-04-16 13:32:55 +00:00
test handle the constant case of vector insertion. For something 2010-08-28 01:50:57 +00:00
tools Straighten out any triple strings passed on the command line before 2010-08-28 01:30:02 +00:00
unittests StringRef::compare_numeric also differed from StringRef::compare for characters > 127. 2010-08-26 15:25:35 +00:00
utils Fix a comment typo. 2010-08-27 21:56:59 +00:00
website
build-for-llvm-top.sh
CMakeLists.txt CMake: system for providing llvm-config-like features to the user. 2010-08-09 03:26:43 +00:00
configure Regenerate. 2010-08-25 08:45:06 +00:00
CREDITS.TXT long past time I added myself to this, I suppose. 2010-07-19 22:04:28 +00:00
LICENSE.TXT 2010 is upon us. 2010-01-09 18:40:31 +00:00
llvm.spec.in
Makefile llvmc: remove dynamic plugins. 2010-08-15 07:07:12 +00:00
Makefile.common
Makefile.config.in Make the makefiles go much faster by using the realpath 2010-08-03 22:53:22 +00:00
Makefile.rules Fix the "Finished Creating" messages for aliases to print the 2010-08-18 01:35:53 +00:00
ModuleInfo.txt
README.txt (Hopefully) One last test. 2010-07-27 00:04:55 +00:00

README.txt 

\Low Level Virtual Machine (LLVM)
================================

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