llvm-svn: 139079

the cycle of missing AVX counterparts of already present SSE* patterns

llvm-svn: 139073

llvm-svn: 139072

llvm-svn: 139071

llvm-svn: 139070

llvm-svn: 139069

duplicate it for AVX mode.

llvm-svn: 139068

llvm-svn: 139067

that the AVX versions (even the 128-bit ones) all clear the upper part
of the destination register.

llvm-svn: 139066

pattern should be matched

llvm-svn: 139065

llvm-svn: 139064

it!

llvm-svn: 139063

llvm-svn: 139062

llvm-svn: 139061

OptForSize pattern

llvm-svn: 139060

The explanation about a 0 argument being materialized as xor is no
longer valid.  Rematerialization will check if EFLAGS is live before
clobbering it.

The code produced by X86TargetLowering::EmitLoweredSelect does not
clobber EFLAGS.

This causes one less testb instruction to be generated in the cmov.ll
test case.

llvm-svn: 139057

It is only allowed to clobber EFLAGS at the end of a block if it isn't
live-in to any successor.

llvm-svn: 139056

llvm-svn: 139055

llvm-svn: 139047

llvm-svn: 139044

case those instructions that the immediate is not sign-extend.  radr://8795217

llvm-svn: 139028

llvm-svn: 139018

only one use. Fix PR10825.

llvm-svn: 138951

llvm-svn: 138897

llvm-svn: 138896

llvm-svn: 138895

llvm-svn: 138858

Make sure we don't crash when -miphoneos-version-min is specified on x86.  Hopefully this will fix gcc testsuite failures.

llvm-svn: 138856

Patch by Sanjoy Das

llvm-svn: 138853

- Duplicate some store patterns to their AVX forms!
- Catched a bug while restricting the patterns subtarget, fix it
  and update a testcase to check it properly

llvm-svn: 138851

llvm-svn: 138850

whenever AVX is enabled.

llvm-svn: 138849

llvm-svn: 138848

llvm-svn: 138832

disabled.

llvm-svn: 138826

In the case of EDInstInfo, this would actually cause a bug when -1 became 255
and was then compared >=0 in llvm-mc/Disassembler.cpp.

llvm-svn: 138825

code is inserted to first check if the current stacklet has enough
space. If so, space is allocated by simply decrementing the stack
pointer. Otherwise a runtime routine (__morestack_allocate_stack_space
in libgcc) is called which allocates the required memory from the
heap.

Patch by Sanjoy Das.

llvm-svn: 138818

from DYNAMIC_STACKALLOC.

Two new pseudo instructions (SEG_ALLOCA_32 and SEG_ALLOCA_64) which
will match X86SegAlloca (based on word size) are also added.  They
will be custom emitted to inject the actual stack handling code.

Patch by Sanjoy Das.

llvm-svn: 138814

X86. Modify the pass added in the previous patch to call this new
code.

This new prologues generated will call a libgcc routine (__morestack)
to allocate more stack space from the heap when required

Patch by Sanjoy Das.

llvm-svn: 138812

Explicitly zero out parts of a vector which are required to be zero by the algorithm in LowerUINT_TO_FP_i32.  This only has a substantial effect on the generated code when the input is extracted from a vector register; other ways of loading an i32 do the appropriate zeroing implicitly.  Fixes PR10802.

llvm-svn: 138768