Even if there's no mode switch performed, the .code directive should still
be sent to the output streamer. Otherwise, for example, an output asm stream
is not equivalent to the input stream which generated it (a dependency on
the input target triple arm vs. thumb is introduced which was not originally
there).

llvm-svn: 139155

llvm-svn: 139154

llvm-svn: 139152

Try again at r138809 (make DSE more aggressive in removing dead stores at the end of a function), now with less deleting stores before memcpy's.

llvm-svn: 139150

llvm-svn: 139148

Now, named mdnode llvm.dbg.cu keeps track of all compile units in a module. Update DebugInfoFinder to collect compile units from llvm.dbg.cu.

llvm-svn: 139147

init.trampoline and adjust.trampoline intrinsics, into two intrinsics
like in GCC.  While having one combined intrinsic is tempting, it is
not natural because typically the trampoline initialization needs to
be done in one function, and the result of adjust trampoline is needed
in a different (nested) function.  To get around this llvm-gcc hacks the
nested function lowering code to insert an additional parent variable
holding the adjust.trampoline result that can be accessed from the child
function.  Dragonegg doesn't have the luxury of tweaking GCC code, so it
stored the result of adjust.trampoline in the memory GCC set aside for
the trampoline itself (this is always available in the child function),
and set up some new memory (using an alloca) to hold the trampoline.
Unfortunately this breaks Go which allocates trampoline memory on the
heap and wants to use it even after the parent has exited (!).  Rather
than doing even more hacks to get Go working, it seemed best to just use
two intrinsics like in GCC.  Patch mostly by Sanjoy Das.

llvm-svn: 139140

llvm-svn: 139139

llvm-svn: 139138

llvm-svn: 139137

add more showing of my work.

llvm-svn: 139136

llvm-svn: 139135

llvm-svn: 139134

visible given a=b=c=d=1, on iteration #1 (the second iteration). Replace it with
correct math. Fixes PR10383!

llvm-svn: 139133

llvm-svn: 139130

HowFarToZero; the case for a canonical loop.

llvm-svn: 139126

instructions are more aligned than the CPU requires, and adds some additional
directives, to follow in future patches. Patch by David Meyer!

llvm-svn: 139125

llvm-svn: 139124

llvm-svn: 139122

InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match.

Fixes clang selfhost.

llvm-svn: 139120

exception.

llvm-svn: 139117

up do-nothing exception handling code produced by dragonegg.

llvm-svn: 139113

- Drop support for X >u 0, it's equivalent to X != 0 and should be canonicalized into the latter.
- Add X < 1 -> unlikely, which is what instcombine canonicalizes X <= 0 into.
- Add X > -1 -> likely, which is what instcombine canonicalizes X >= 0 into.

llvm-svn: 139110

edis shared library in the Makefile build, also stop building it in the
CMake build.

Patch by arrowdodger!

llvm-svn: 139108

some CMake patch backlog...

llvm-svn: 139107

Patch by arrowdodger!

llvm-svn: 139106

Use Duncan's patch to delete the instructions in reverse order (minus the landingpad and terminator).

llvm-svn: 139090

call. The call may be in the same BB as the landingpad instruction. If that's
the case, then inserting the loads after the landingpad inst, but before the
extractvalues, causes undefined behavior.

llvm-svn: 139088

llvm-svn: 139084

llvm-svn: 139079

values that the resume instruction uses.
PR10850

llvm-svn: 139076

llvm-svn: 139074

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