llvm-svn: 70427

llvm-svn: 70425

llvm-svn: 70422

(sext i8 {-128,+,1} to i64) to i64 {-128,+,1}, where the iteration
crosses from negative to positive, but is still safe if the trip
count is within range.

llvm-svn: 70421

llvm-svn: 70416

llvm-svn: 70411

llvm-svn: 70410

llvm-svn: 70408

print sext, zext, and trunc, instead of signextend, zeroextend,
and truncate, respectively, for consistency with the main IR.

llvm-svn: 70405

llvm-svn: 70391

llvm-svn: 70386

llvm-svn: 70379

spillPhysRegAroundRegDefsUses() may have invalidated iterators stored in fixed_ IntervalPtrs. Reset them.

llvm-svn: 70378

llvm-svn: 70375

llvm-svn: 70372

llvm-svn: 70366

anything larger than 64-bits, avoiding a crash.  This should
really be fixed to use APInts, though type legalization happens
to help us out and we get good code on the attached testcase at
least.

This fixes rdar://6836460

llvm-svn: 70360

llvm-svn: 70357

llvm-svn: 70354

Determine allocation 'preference' with right register class. I haven't seen this changing codegen so no test case.

llvm-svn: 70351

an optimization level instead of a simple boolean telling it to generate code
"fast" or the other type of "fast".

llvm-svn: 70347

Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.

llvm-svn: 70343

llvm-svn: 70340

that it can't be trivially eliminated.

llvm-svn: 70334

if indvars happens to optimize away the unused primary induction
variable.

llvm-svn: 70333

llvm-svn: 70331

This should fix PR3379 and PR4064.
Patch inspired by Edwin Török!

llvm-svn: 70328

llvm-svn: 70319

llvm-svn: 70309

llvm-svn: 70302

llvm-svn: 70300

Fix choice of version of Windows callback to use to consider not only the Visual Studio version, but also the Windows SDK version.

Patch by Tareq Siraj.

llvm-svn: 70299

If the physical register does not belong to the virtual register's regclass,
don't coalesce. The physical register could be an invalid operand for an
instruction using the vreg.

The regclass matching is done after determining the actual subregisters being copied.

llvm-svn: 70298

llvm-svn: 70297

Also make the method non-asserting. It will return NULL when given an invalid subreg index.

The method is needed by an upcoming patch.

llvm-svn: 70296

llvm-svn: 70291

llvm-svn: 70290

llvm-svn: 70279

llvm-svn: 70275

use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...

llvm-svn: 70270