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| author | Andrew Trick <atrick@apple.com> | 2011-04-13 00:38:32 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-04-13 00:38:32 +0000 |
| commit | b53a00d2cbc643d461ebd57e8f029f38631bfd34 (patch) | |
| tree | 0bb4300556bfe91933aaf65004de971f1ac5d721 /llvm/test/CodeGen/Thumb2/thumb2-uxtb.ll | |
| parent | 3137d3cb499af07c021f5a12dad1cd5418dd024f (diff) | |
| download | bcm5719-llvm-b53a00d2cbc643d461ebd57e8f029f38631bfd34.tar.gz bcm5719-llvm-b53a00d2cbc643d461ebd57e8f029f38631bfd34.zip | |
Recommit r129383. PreRA scheduler heuristic fixes: VRegCycle, TokenFactor latency.
Additional fixes:
Do something reasonable for subtargets with generic
itineraries by handle node latency the same as for an empty
itinerary. Now nodes default to unit latency unless an itinerary
explicitly specifies a zero cycle stage or it is a TokenFactor chain.
Original fixes:
UnitsSharePred was a source of randomness in the scheduler: node
priority depended on the queue data structure. I rewrote the recent
VRegCycle heuristics to completely replace the old heuristic without
any randomness. To make the ndoe latency adjustments work, I also
needed to do something a little more reasonable with TokenFactor. I
gave it zero latency to its consumers and always schedule it as low as
possible.
llvm-svn: 129421
Diffstat (limited to 'llvm/test/CodeGen/Thumb2/thumb2-uxtb.ll')
| -rw-r--r-- | llvm/test/CodeGen/Thumb2/thumb2-uxtb.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/Thumb2/thumb2-uxtb.ll b/llvm/test/CodeGen/Thumb2/thumb2-uxtb.ll index 2074f98cb60..35914b16790 100644 --- a/llvm/test/CodeGen/Thumb2/thumb2-uxtb.ll +++ b/llvm/test/CodeGen/Thumb2/thumb2-uxtb.ll @@ -128,9 +128,9 @@ define i32 @test10(i32 %p0) { ; ARMv7M: test10 ; ARMv7M: mov.w r1, #16253176 +; ARMv7M: mov.w r2, #458759 ; ARMv7M: and.w r0, r1, r0, lsr #7 -; ARMv7M: mov.w r1, #458759 -; ARMv7M: and.w r1, r1, r0, lsr #5 +; ARMv7M: and.w r1, r2, r0, lsr #5 ; ARMv7M: orrs r0, r1 %tmp1 = lshr i32 %p0, 7 ; <i32> [#uses=1] %tmp2 = and i32 %tmp1, 16253176 ; <i32> [#uses=2] |
