Juneyoung Lee 274ef2efad Let EarlyCSE fold equivalent freeze instructions ... Summary: This patch makes EarlyCSE fold equivalent freeze instructions. Another optimization that I think will be useful is to remove freeze if its operand is used as a branch condition or at llvm.assume: ``` %c = ... br i1 %c, label %A, .. A: %d = freeze %c ; %d can be optimized to %c because %c cannot be poison or undef (or 'br %c' would be UB otherwise) ``` If it make sense for EarlyCSE to support this as well, I will make a patch for this. Reviewers: spatel, reames, lebedev.ri Reviewed By: lebedev.ri Subscribers: lebedev.ri, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D75334		2020-02-28 20:35:20 +09:00
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AArch64
AMDGPU	Move target tests to target subdirectories	2020-01-31 15:27:18 -08:00
PowerPC	Move target tests to target subdirectories	2020-01-31 15:27:18 -08:00
X86	Move target tests to target subdirectories	2020-01-31 15:27:18 -08:00
and_or.ll
atomics.ll
basic.ll	Let EarlyCSE fold equivalent freeze instructions	2020-02-28 20:35:20 +09:00
commute.ll	[EarlyCSE] avoid crashing when detecting min/max/abs patterns (PR41083)	2020-02-10 17:25:34 -05:00
conditional.ll
const-speculation.ll
debug-info-undef.ll	Reapply: [DebugInfo] Correctly handle salvaged casts and split fragments at ISel	2019-12-18 16:26:42 +00:00
debuginfo-dce.ll
edge.ll
fence.ll
flags.ll
floatingpoint.ll
globalsaa-memoryssa.ll
guards.ll
instsimplify-dom.ll
int_sideeffect.ll
invariant-loads.ll
invariant.start.ll
memoryssa.ll
pr33406.ll
readnone-mayunwind.ll
writeonly.ll