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2007-12-30Simplify and clean up some machine operand/instr printing/dumping stuff.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45456 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30two register machineoperands are not identical unless their subregs match.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45455 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30MachineOperand::getImmedValue -> MachineOperand::getImmChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45454 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30Use MachineOperand::getImm instead of MachineOperand::getImmedValue. ↵Chris Lattner
Likewise setImmedValue -> setImm git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45453 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30Add some doxygen comments to llvm-c/Core.h.Gordon Henriksen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45450 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30make machine operands fatter: give each one an up-pointer to the Chris Lattner
machineinstr that owns it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45449 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30If we have a load of a global address that's not modified during theBill Wendling
function, then go ahead and hoist it out of the loop. This is the result: $ cat a.c volatile int G; int A(int N) { for (; N > 0; --N) G++; } $ llc -o - -relocation-model=pic _A: ... LBB1_2: # bb movl L_G$non_lazy_ptr-"L1$pb"(%eax), %esi incl (%esi) incl %edx cmpl %ecx, %edx jne LBB1_2 # bb ... $ llc -o - -relocation-model=pic -machine-licm _A: ... movl L_G$non_lazy_ptr-"L1$pb"(%eax), %eax LBB1_2: # bb incl (%eax) incl %edx cmpl %ecx, %edx jne LBB1_2 # bb ... I'm limiting this to the MOV32rm x86 instruction for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45444 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30use simplified operand addition methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45437 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30use simplified operand addition methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45436 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30use simplified operand addition methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45435 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30Shrinkify the machine operand creation method names.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45433 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30Start using the simplified methods for adding operands.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45432 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30simplify some code by factoring operand construction better.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45428 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Remove attribution from file headers, per discussion on llvmdev.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29remove attribution from lib Makefiles.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45415 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29this is done.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45408 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29One readme entry is done, one is really easy (Evan, want to investigateChris Lattner
eliminating the llvm.x86.sse2.loadl.pd intrinsic?), one shuffle optzn may be done (if shufps is better than pinsw, Evan, please review), and we already know about LICM of simple instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45407 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Fold comparisons against a constant nan, and optimize ORD/UNORD Chris Lattner
comparisons with a constant. This allows us to compile isnan to: _foo: fcmpu cr7, f1, f1 mfcr r2 rlwinm r3, r2, 0, 31, 31 blr instead of: LCPI1_0: ; float .space 4 _foo: lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr7, f1, f0 mfcr r2 rlwinm r3, r2, 0, 31, 31 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45405 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29this xform is implemented.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45404 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Disable null pointer folding transforms for non-generic address spaces. This ↵Christopher Lamb
should probably be a target-specific predicate based on address space. That way for targets where this isn't applicable the predicate can be optimized away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45403 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29make sure not to zap volatile stores, thanks a lot to Dale for noticing this!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45402 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Codegen:Chris Lattner
as: _bar: pushl %esi subl $8, %esp movl 16(%esp), %esi call L_foo$stub fstps (%esi) addl $8, %esp popl %esi #FP_REG_KILL ret instead of: _bar: pushl %esi subl $8, %esp movl 16(%esp), %esi call L_foo$stub fstpl (%esi) cvtsd2ss (%esi), %xmm0 movss %xmm0, (%esi) addl $8, %esp popl %esi #FP_REG_KILL ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45401 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29don't fold fp_round(fp_extend(load)) -> fp_round(extload)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45400 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29avoid going through a stack slot to convert from fpstack to xmm regChris Lattner
if we are just going to store it back anyway. This improves things like: double foo(); void bar(double *P) { *P = foo(); } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45399 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Delete a store whose input is a load from the same pointer:Chris Lattner
x = load p store x -> p git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45398 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45397 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29expand note.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45393 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29dead calls to llvm.stacksave can be deleted, even though theyChris Lattner
have potential side-effects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45392 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28add a note.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45388 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28add a note.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45387 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28Repair a transform that Chris noticed a bug in. Thanks to Nicholas for ↵Owen Anderson
pointing out my stupid mistakes when writing this patch. :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45384 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28disable this instcombine xform, it miscompiles:Chris Lattner
define i32 @main() { entry: %z = alloca i32 ; <i32*> [#uses=2] store i32 0, i32* %z %tmp = load i32* %z ; <i32> [#uses=1] %sub = sub i32 %tmp, 1 ; <i32> [#uses=1] %cmp = icmp ult i32 %sub, 0 ; <i1> [#uses=1] %retval = select i1 %cmp, i32 1, i32 0 ; <i32> [#uses=1] ret i32 %retval } into ret 1, instead of ret 0. Christopher, please investigate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45383 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45377 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-27Ignore functions with internal linkages during linking. This snipped mimics theAnton Korobeynikov
behaviour of LinkGlobals() function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45375 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-27Adding bindings for target triple and data layout.Gordon Henriksen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45369 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-27Switch the bindings to use LLVMFoldingBuilder.Gordon Henriksen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45367 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-25Fixing several transforms which would drop the collector attributeGordon Henriksen
when copying functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45356 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-25Don't break critical edges for single-bb loops, this helps with PR1877, thoughChris Lattner
it is only a partial fix. This change is noise for most programs, but speeds up Shootout-C++/matrix by 20%, Ptrdist/ks by 24%, smg2000 by 8%, hexxagon by 9%, bzip2 by 9% (not sure I trust this), ackerman by 13%, etc. OTOH, it slows down Shootout/fib2 by 40% (I'll update PR1877 with this info). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45354 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-25GC poses hazards to the inliner. Consider:Gordon Henriksen
define void @f() { ... call i32 @g() ... } define void @g() { ... } The hazards are: - @f and @g have GC, but they differ GC. Inlining is invalid. This may never occur. - @f has no GC, but @g does. g's GC must be propagated to @f. The other scenarios are safe: - @f and @g have the same GC. - @f and @g have no GC. - @g has no GC. This patch adds inliner checks for the former two scenarios. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45351 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-25Noting and enforcing that GC intrinsics are valid only within aGordon Henriksen
function with GC. This will catch the error when the inliner inlines a function with GC into a caller with no GC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45350 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-25Adjusting verification of "llvm.gc*" intrinsic prototypes to matchGordon Henriksen
LangRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45349 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-24Flesh out the Briggs implementation a little bit more, fix a few FIXMEs.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45347 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-24add a -backedge-hack llc-beta option to codegenprepare.Chris Lattner
When specified, don't split backedges of single-bb loops. This helps address PR1877 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45344 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-24add a simple hackChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45343 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-24Cygwin defines uint32_t as unsigned long. Unbreak call to std::min in this caseAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45342 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-23Setting GlobalDirective in TargetAsmInfo by default rather thanGordon Henriksen
providing a misleading facility. It's used once in the MIPS backend and hardcoded as "\t.globl\t" everywhere else. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45338 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-23C and Ocaml bindings for ExecutionEngine (i.e., the JIT compiler).Gordon Henriksen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45335 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-23Sketch out an implementation of Briggs' copy placement algorithm.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45334 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22fix some warnings. This code needs to be de-tabified :(Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45325 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22fix strict-aliasing violationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45324 91177308-0d34-0410-b5e6-96231b3b80d8
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