llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-18 14:31:27 +00:00

History

Chandler Carruth f2d7693fbb Begin teaching the X86 target how to efficiently codegen patterns that

use the zero-undefined variants of CTTZ and CTLZ. These are just simple
patterns for now, there is more to be done to make real world code using
these constructs be optimized and codegen'ed properly on X86.

The existing tests are spiffed up to check that we no longer generate
unnecessary cmov instructions, and that we generate the very important
'xor' to transform bsr which counts the index of the most significant
one bit to the number of leading (most significant) zero bits. Also they
now check that when the variant with defined zero result is used, the
cmov is still produced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146974 91177308-0d34-0410-b5e6-96231b3b80d8

2011-12-20 11:19:37 +00:00

ARM

Mark ARM eh_sjlj_dispatchsetup as clobbering all registers. Radar 10567930.

2011-12-20 01:29:27 +00:00

CBackend

Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.

2011-11-27 06:54:59 +00:00

CellSPU

Remove histogram tests.

2011-11-12 22:39:40 +00:00

CPP

manually upgrade a bunch of tests to modern syntax, and remove some that