llvm-svn: 40043

With this, the time to optimize 403.gcc is down to 15.1s.

llvm-svn: 40042

llvm-svn: 40041

This results in a slight speedup for 403.gcc.

llvm-svn: 40040

llvm-svn: 40039

reduces the time to optimize 403.gcc from 17.6s to 16.4s.

llvm-svn: 40036

second part dominates all the blocks dominated
by original basic block. And first part dominates
second part.

llvm-svn: 40035

llvm-svn: 40034

InOperandList. This gives one piece of important information: # of results
produced by an instruction.
An example of the change:
def ADD32rr  : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
=>
def ADD32rr  : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;

llvm-svn: 40033

llvm-svn: 40030

llvm-svn: 40028

llvm-svn: 40025

This fixes PR1559.

llvm-svn: 40024

llvm-svn: 40023

llvm-svn: 40022

llvm-svn: 40020

Use MOV instead of LEA to restore ESP if callee-saved frame size is 0; if previous instruction updates esp, fold it in.

llvm-svn: 40018

end of a BasicBlock and have an alignment parameter.

llvm-svn: 40016

and stores that have a specified alignment of less than 16 bytes now use
instructions that support misaligned memory references.

llvm-svn: 40015

would result in calling realloc() on a null pointer.  Instead, if we encounter
this situation, make a normal call to malloc().

llvm-svn: 40014

alignment is equal to the stack alignment.

llvm-svn: 40004

llvm-svn: 39998

llvm-svn: 39995

llvm-svn: 39993

configured llvm-gcc instead.

llvm-svn: 39992

llvm-svn: 39991

llvm-svn: 39990

Note: FastDSE now equals or exceeds the results of old DSE on all of SPEC2000 and SPEC2006. Unless major problems
show up in the testers, it will likely completely replace old DSE in the near future.

llvm-svn: 39986

llvm-svn: 39984

llvm-svn: 39983

llvm-svn: 39980

llvm-svn: 39979

llvm-svn: 39978

llvm-svn: 39977

llvm-svn: 39976

Don't use * in XFAIL line unless you want it to XFAIL on everything. I don't believe you can use true regular expressions here. It will just look for those keywords. Please test this on sparc and see if they still are xfailed.

llvm-svn: 39975

Missed the case where alloca is used but the stack size (not including callee-saved portion) is zero. Thanks Dan.

llvm-svn: 39974

llvm-svn: 39971

llvm-svn: 39969

llvm-svn: 39967