Maurice Heumann 27eaa8a40e [InstCombine] Prevent infinite loop with two shifts (#118806) ...

The following pattern: `(C2 << X) << C1` will usually be transformed
into `(C2 << C1) << X`, essentially swapping `X` and `C1`.

However, this should only be done when `C1` is an immediate constant,
otherwise thiscan lead to both constants being swapped forever.

This fixes #118798.

2024-12-05 16:57:27 +01:00

..

CMakeLists.txt

…

InstCombineAddSub.cpp

[InstCombine] Fix use after free

2024-12-04 17:20:04 +01:00

InstCombineAndOrXor.cpp

[InstCombine] Handle trunc i1 pattern in eq-of-parts fold (#112704)

2024-11-25 11:49:00 +01:00

InstCombineAtomicRMW.cpp

…

InstCombineCalls.cpp

[PatternMatch] Introduce m_c_Select (#114328)

2024-11-25 13:47:23 +00:00

InstCombineCasts.cpp

[InstCombine] Remove nusw handling in ptrtoint of gep fold (NFCI) (#118804)

2024-12-05 15:59:35 +01:00

InstCombineCompares.cpp

[InstCombine] Fold icmp spred (X *nsw Z), (Y *nsw Z) -> icmp pred Z, 0 if scmp(X, Y) is known (#118726)

2024-12-05 19:59:31 +08:00

InstCombineInternal.h

IR: introduce struct with CmpInst::Predicate and samesign (#116867)

2024-12-03 13:31:04 +00:00

InstCombineLoadStoreAlloca.cpp

[Passes] Remove -enable-infer-alignment-pass flag (#111873)

2024-10-10 12:28:46 -07:00

InstCombineMulDivRem.cpp

[InstSimplify][InstCombine][ConstantFold] Move vector div/rem by zero fold to InstCombine (#114280)

2024-11-01 22:56:22 +08:00

InstCombineNegator.cpp

[InstCombine] Drop nsw in negation of select (#112893)

2024-11-08 16:20:04 +08:00

InstCombinePHI.cpp

[InstCombine] Intersect nowrap flags between geps while folding into phi

2024-11-13 19:42:06 +01:00

InstCombineSelect.cpp

[InstCombine][FP] Fix nnan preservation for transform fcmp + sel => fmax/fmin (#117977)

2024-12-03 14:01:36 +08:00

InstCombineShifts.cpp

[InstCombine] Prevent infinite loop with two shifts (#118806)

2024-12-05 16:57:27 +01:00

InstCombineSimplifyDemanded.cpp

[InstCombine] Fold (X * (Y << K)) u>> K -> X * Y when highbits are not demanded (#111151)

2024-12-03 12:04:04 +08:00

InstCombineVectorOps.cpp

[InstCombine] Extend folding of aggregate construction to cases when source aggregates are partially available (#100828)

2024-11-21 08:34:27 -08:00

InstructionCombining.cpp

[InstCombine] Move gep of phi fold into separate function

2024-12-05 15:20:56 +01:00