llvm-svn: 109167

This is probably not the best way to implement "Force LR to 
be spilled if the Thumb function size is > 2048." do this, 
it should use the branch shortening infrastructure, but I'm
just preserving functionality here.

llvm-svn: 109165

llvm-svn: 109164

Patch from Eli.

llvm-svn: 109163

llvm-svn: 109154

rip out the implementation of X86InstrInfo::GetInstSizeInBytes.
The code being ripped out just implemented a copy and hacked up
version of the (old) instruction encoder, and is buggy and 
terrible in other ways.  Since "GetInstSizeInBytes" is really 
only there to support the JIT's "NeedsExactSize" hook (which
noone is using), just rip out the code.  I will rip out the
NeedsExactSize hook next.

This resolves rdar://7617809 - switch X86InstrInfo::GetInstSizeInBytes to use X86MCCodeEmitter

llvm-svn: 109149

llvm-svn: 109132

llvm-svn: 109125

llvm-svn: 109122

A non function local MDNode can have an operand which is cloned by MapValue(). 

llvm-svn: 109117

llvm-svn: 109111

llvm-svn: 109110

llvm-svn: 109109

llvm-svn: 109108

llvm-svn: 109104

llvm-svn: 109103

llvm-svn: 109102

llvm-svn: 109101

llvm-svn: 109100

llvm-svn: 109099

llvm-svn: 109098

llvm-svn: 109094

llvm-svn: 109093

llvm-svn: 109092

llvm-svn: 109091

llvm-svn: 109090

The RegionInfo pass detects single entry single exit regions in a function,
where a region is defined as any subgraph that is connected to the remaining
graph at only two spots.
Furthermore an hierarchical region tree is built.
Use it by calling "opt -regions analyze" or "opt -view-regions".

llvm-svn: 109089

especially on other platforms. Is there a better way to fix this.

llvm-svn: 109084

llvm-svn: 109083

llvm-svn: 109082

llvm-svn: 109081

Patch by Olivier Meurant!

llvm-svn: 109080

llvm-svn: 109079

for lowering without sse2.  Add a couple of new testcases.

Fixes a few libgomp tests and latent bugs.  Remove a few todos.

llvm-svn: 109078

Fix constant island pass's handling of tBR_JTr. The offset of the instruction does not have to be 4-byte aligned. Rather, it's the offset + 2 that must be aligned since the instruction expands into:
        mov     pc, r1
        .align  2
LJTI0_0_0:
        .long    LBB0_14

This fixes rdar://8213383. No test case since it's not possible to come up with a suitable small one.

llvm-svn: 109076

llvm-svn: 109075

llvm-svn: 109071

llvm-svn: 109070

llvm-svn: 109069

llvm-svn: 109064