llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-09 10:31:14 +00:00

History

Jakob Stoklund Olesen 41e2073f62 Don't PRE compares.

CodeGenPrepare sinks compare instructions down to their uses to prevent
live flags and predicate registers across basic blocks.

PRE of a compare instruction prevents that, forcing the i1 compare
result into a general purpose register.  That is usually more expensive
than the redundant compare PRE was trying to eliminate in the first
place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153657 91177308-0d34-0410-b5e6-96231b3b80d8

2012-03-29 17:22:39 +00:00

Hello

…

InstCombine

153465 was incorrect. In this code we wanted to check that the pointer operand is of pointer type (and not vector type).

2012-03-26 21:00:53 +00:00

Instrumentation

[tsan] treat vtable pointer updates in a special way (requires tbaa); fix a bug (forgot to return true after instrumenting); make sure the tsan tests are run

2012-03-26 17:35:03 +00:00

IPO

GlobalOpt: If we have an inbounds GEP from a ConstantAggregateZero global that we just determined to be constant, replace all loads from it with a zero value.

2012-03-28 14:50:09 +00:00