llvm-project
[llvm] [InstCombine] fold "icmp eq (X + (V - 1)) & -V, X" to "icmp eq (and X, V - 1), 0"
#152851

Merged

[llvm] [InstCombine] fold "icmp eq (X + (V - 1)) & -V, X" to "icmp eq (and X, V - 1), 0" #152851

pskrgag merged 14 commits into llvm:main from pskrgag:foldIcmp

fold "icmp eq (num + (val - 1)) & -val, num" to "icmp eq 0, (and num,…

d8b5d15f

pskrgag requested a review from

nikic 217 days ago

pskrgag removed review request from

nikic 217 days ago

pskrgag requested a review from

dtcxzyw 217 days ago

llvmbot added llvm:instcombine

llvmbot added llvm:transforms

coding style...

93fd0c6d

dtcxzyw commented on 2025-08-09

dtcxzyw requested a review from

nikic 216 days ago

address review comments

914dd1f9

coding style....

fa89f888

dtcxzyw commented on 2025-08-10

review

25aec6bf

dtcxzyw commented on 2025-08-10

learning llvm...

b66f1280

use m_Defereded instead of m_Specific

db1316ba

dtcxzyw commented on 2025-08-11

don't open code bitwise not

c72f7bbf

drop non-constant path as it happens to be non-profitable

0e9e8e71

nikic commented on 2025-08-11

review

327aaed2

dtcxzyw approved these changes on 2025-08-13

dtcxzyw changed the title ~~[llvm] [InstCombine] fold "icmp eq (X + (V - 1)) & -V, X" to "icmp eq 0, (and X, V - 1)"~~ [llvm] [InstCombine] fold "icmp eq (X + (V - 1)) & -V, X" to "icmp eq (and X, V - 1), 0" 212 days ago

style fixes

ee4c1a20

Merge branch 'main' into foldIcmp

98e655cf

swap operands in comment

b58e3881

nikic approved these changes on 2025-08-13

comment fixes

52ef6a67

pskrgag merged 30144226 into main 212 days ago

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dtcxzyw

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llvm-project [llvm] [InstCombine] fold "icmp eq (X + (V - 1)) & -V, X" to "icmp eq (and X, V - 1), 0" #152851 Merged

[llvm] [InstCombine] fold "icmp eq (X + (V - 1)) & -V, X" to "icmp eq (and X, V - 1), 0" #152851

llvm-project
[llvm] [InstCombine] fold "icmp eq (X + (V - 1)) & -V, X" to "icmp eq (and X, V - 1), 0"
#152851

Merged