change.

llvm-svn: 73143

Add the beginnings of an implementatation of lazy liveness analysis, based on "Fast Liveness Checking for SSA-form Programs" by Boissinot, et al.

This is still very early, hasn't been tested, and is not yet well documented.  More to come soon.

llvm-svn: 73141

llvm-svn: 73140

computation that isn't used. Please correct this if it's wrong!

llvm-svn: 73139

Revert 73074 and 73099 because Windows doesn't have POSIX
regular expressions.  We will add an OpenBSD implementation
and re-apply ASAP.

llvm-svn: 73138

immediately casted. At present, this is just a minor code
simplification. In the future, the expansion code may be able
to make better choices if it knows what the desired result
type will be.

llvm-svn: 73137

specialization types. As the example shows, we can now compute the
length of a type-list using a template metaprogram and class template
partial specialization.

llvm-svn: 73136

PIC16 emits auto variables as globals. When optimizer removes a function entierly by estimating its side effects on globals, those globals(autos) without a function were not being printed by the Asm printer.

llvm-svn: 73135

llvm-svn: 73120

llvm-svn: 73119

Comment out preliminary text due to wishful thinking of getting more documentation done by this point.

llvm-svn: 73118

llvm-svn: 73117

llvm-svn: 73116

llvm-svn: 73115

llvm-svn: 73114

llvm-svn: 73113

llvm-svn: 73112

Change IndexedModeAction representation.

This changes the IndexedModeAction representation to remove the
limitation on the number of value types in MVT.  This limitation
prevents us from specifying AVX types.

Prior to this change IndexedModActions was represented as follows...

uint64_t IndexedModeActions[2][ISD::LAST_INDEXED_MODE];

the first dimension was used to represent loads, then stores.  This
imposed a limitation of 32 on the number of value types that could be
handled with this method.  The value type was used to shift the two bits
into and out of the approprate bits in the uint64_t.

With this change the array is now represented as ...

uint8_t IndexedModeActions[MVT::LAST_VALUETYPE][2][ISD::LAST_INDEXED_MODE];

Takes more space but removes the limitation on MVT::LAST_VALUETYPE.  The
first dimension is now the value_type for the reference.  The second
dimension is the load [0] vs. store[1].  The third dimension represents
the various modes for load store.  Accesses are now direct, no shifting
or masking.

There are other limitations that need to be removed, so that
MVT::LAST_VALUETYPE can be greater than 32.  This is merely the first
step towards that goal.

llvm-svn: 73104

llvm-svn: 73103

Change IndexedModeAction representation.

This changes the IndexedModeAction representation to remove the
limitation on the number of value types in MVT.  This limitation
prevents us from specifying AVX types.

Prior to this change IndexedModActions was represented as follows...

uint64_t IndexedModeActions[2][ISD::LAST_INDEXED_MODE];

the first dimension was used to represent loads, then stores.  This
imposed a limitation of 32 on the number of value types that could be
handled with this method.  The value type was used to shift the two bits
into and out of the approprate bits in the uint64_t.

With this change the array is now represented as ...

uint8_t IndexedModeActions[MVT::LAST_VALUETYPE][2][ISD::LAST_INDEXED_MODE];

Takes more space but removes the limitation on MVT::LAST_VALUETYPE.  The
first dimension is now the value_type for the reference.  The second
dimension is the load [0] vs. store[1].  The third dimension represents
the various modes for load store.  Accesses are now direct, no shifting
or masking.

There are other limitations that need to be removed, so that
MVT::LAST_VALUETYPE can be greater than 32.  This is merely the first
step towards that goal.

llvm-svn: 73102

llvm-svn: 73101

Add a !patsubst operator.  Use on string types.

llvm-svn: 73099

llvm-svn: 73098

llvm-svn: 73097

(double def due to livevars)

llvm-svn: 73096

ABI. The missing piece is support for putting "homogeneous aggregates"
into registers.

Patch by Sandeep Patel!

llvm-svn: 73095

source directory.

llvm-svn: 73094

 - <rdar://problem/6948443> WARNING: Linking two modules of different data
   layouts!

llvm-svn: 73093

Update documentation.

llvm-svn: 73092

Add a more robust !if test.

llvm-svn: 73091

Fix DejaGNU run line to escape special characters.

llvm-svn: 73090

llvm-svn: 73089

 - <rdar://problem/6945384> Driver should pass down -C and -CC

llvm-svn: 73087

llvm-svn: 73086

llvm-svn: 73085

Patch by Tareq Siraj.

llvm-svn: 73084

llvm-svn: 73083

llvm-svn: 73082

llvm-svn: 73081

llvm-svn: 73080