llvm-project/llvm/test/Transforms/LoopStrengthReduce
Nikita Popov 84c15bc018 [SCEVExpander] Support opaque pointers
This adds support for opaque pointers to expandAddToGEP() by always
generating an i8 GEP for opaque pointers. After looking at some other
cases (constexpr GEP folding, SROA GEP generation), I've come around
to the idea that we should use i8 GEPs for opaque pointers, because
the alternative would be to guess a GEP type from surrounding code,
which will not be reliable. Ultimately, i8 GEPs is where we want to
end up anyway, and opaque pointers just make that the natural choice.

There are a couple of other places in SCEVExpander that check pointer
element types, I plan to update those when I run across usable test
coverage that doesn't assert elsewhere.

Differential Revision: https://reviews.llvm.org/D105398
2021-07-07 20:47:59 +02:00
..
AArch64 [LSR] Fix for pre-indexed generated constant offset 2021-04-15 16:44:42 +01:00
AMDGPU Recommit [ScalarEvolution] Make getMinusSCEV() fail for unrelated pointers. 2021-07-06 12:16:05 -07:00
ARM Precommit tests that have poison as shufflevector's placeholder 2020-12-29 17:09:31 +09:00
NVPTX
Power [PowerPC] implement target hook getTgtMemIntrinsic 2020-10-07 00:02:44 -04:00
X86 Recommit [ScalarEvolution] Make getMinusSCEV() fail for unrelated pointers. 2021-07-06 12:16:05 -07:00
2005-08-15-AddRecIV.ll
2005-08-17-OutOfLoopVariant.ll
2005-09-12-UsesOutOutsideOfLoop.ll
2007-04-23-UseIterator.ll
2008-08-13-CmpStride.ll
2008-09-09-Overflow.ll
2009-01-13-nonconstant-stride-outside-loop.ll
2009-04-28-no-reduce-mul.ll
2011-07-19-CritEdgeBreakCrash.ll
2011-10-03-CritEdgeMerge.ll Reland [SCEV] Improve modelling for (null) pointer constants 2021-03-13 16:05:34 +03:00
2011-10-06-ReusePhi.ll
2011-10-13-SCEVChain.ll
2011-10-14-IntPtr.ll
2011-12-19-PostincQuadratic.ll
2012-01-02-nopreheader.ll
2012-01-16-nopreheader.ll
2012-03-15-nopreheader.ll
2012-03-26-constexpr.ll
2012-07-13-ExpandUDiv.ll
2012-07-18-LimitReassociate.ll
2013-01-05-IndBr.ll
2013-01-14-ReuseCast.ll
addrec-gep-address-space.ll
addrec-gep.ll
address-space-loop.ll
callbr-critical-edge-splitting.ll BreakCriticalEdges: do not split the critical edge from a CallBr indirect successor 2021-01-15 13:51:47 -08:00
callbr-critical-edge-splitting2.ll BreakCriticalEdges: do not split the critical edge from a CallBr indirect successor 2021-01-15 13:51:47 -08:00
count-to-zero.ll
dbg-preserve-0.ll Reland [DebugInfo] Improve dbg preservation in LSR. 2020-12-14 16:15:18 +01:00
dbg-preserve-1.ll [DebugInfo] Avoid LSR crash on large integer inputs 2021-01-05 10:25:37 +00:00
dbg-preserve-2.ll [DebugInfo] Prevent invalid debug info being produced during LoopStrengthReduce 2021-04-08 13:04:48 +01:00
dead-phi.ll
different-type-ivs.ll
dominate-assert.ll
dont-hoist-simple-loop-constants.ll
dont_insert_redundant_ops.ll
dont_reduce_bytes.ll
dont_reverse.ll
ephemeral.ll
exit_compare_live_range.ll
funclet.ll Recommit [ScalarEvolution] Make getMinusSCEV() fail for unrelated pointers. 2021-07-06 12:16:05 -07:00
gnarly-setupcost.ll
hoist-parent-preheader.ll
illegal-addr-modes.ll
invariant_value_first.ll
invariant_value_first_arg.ll
ivchain.ll [NewPM][LSR] Rename strength-reduce -> loop-reduce 2020-07-02 11:15:29 -07:00
lsr-comp-time.ll
lsr-overflow.ll
missing-phi-operand-update.ll
multi-edge-latch.ll [LSR] Add test for multi-edge latch (NFC) 2021-02-06 18:31:45 +01:00
negative-scale.ll
nested-reduce.ll
nonintegral.ll
nonlinear-postinc.ll
opaque-ptr.ll [SCEVExpander] Support opaque pointers 2021-07-07 20:47:59 +02:00
ops_after_indvar.ll
optimizemax_debugloc.ll [LSR][DebugInfo] Don't unnecessarily drop DebugLocs 2021-04-26 13:14:42 +01:00
phi_node_update_multiple_preds.ll
post-inc-icmpzero.ll Revert "Return "[SCEV] Use isBasicBlockEntryGuardedByCond in isLoopBackedgeGuardedByCond", 2nd try" 2020-11-26 18:12:51 +07:00
post-inc-optsize.ll
post-increment-insertion.ll [LSR] Unify scheduling of existing and inserted addrecs 2021-03-03 12:07:55 -08:00
pr2537.ll
pr2570.ll [NFC][LSR] Avoid undefined grep in pr2570.ll 2019-06-19 16:02:54 +00:00
pr3086.ll [test] Fix tests using -analyze that fail under NPM 2020-10-21 21:54:30 -07:00
pr3399.ll
pr3571.ll
pr12018.ll
pr12048.ll
pr12691.ll
pr18165.ll Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
pr25541.ll
pr27056.ll Recommit [ScalarEvolution] Make getMinusSCEV() fail for unrelated pointers. 2021-07-06 12:16:05 -07:00
pr31627.ll
pr48725.ll [SCEV] Do not cache comparison result upon reached max depth as "equivalence". PR48725 2021-01-29 12:08:34 +07:00
pr50765.ll [LSR] Filter out zero factors. PR50765 2021-06-23 10:43:06 +07:00
preserve-gep-loop-variant.ll
related_indvars.ll
remove_indvar.ll
scaling_factor_cost_crash.ll
scev-after-loopinstsimplify.ll
scev-expander-lcssa.ll [SCEV] Add additional tests. 2020-07-28 16:15:57 +01:00
scev-insertpt-bug.ll
sext-ind-var.ll
share_code_in_preheader.ll
share_ivs.ll
shl.ll
two-combinations-bug.ll Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
uglygep-address-space.ll
uglygep.ll
use_postinc_value_outside_loop.ll
var_stride_used_by_compare.ll
variable_stride.ll