https://bugs.llvm.org/show_bug.cgi?id=48744
Bug ID: 48744
Summary: [InstCombine] x*3/4 > x not simplified
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Missing fold:
define i1 @src(i32 %x) {
%m = mul nuw i32 %x, 3
%d = lshr i32 %m, 2
%c = icmp ugt i32 %d, %x
ret i1 %c
}
define i1 @tgt(i32 %x) {
ret i1 false
}
https://llvm.godbolt.org/z/6z99v8
https://alive2.llvm.org/ce/z/mnzcKx
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