https://bugs.llvm.org/show_bug.cgi?id=43501
Bug ID: 43501
Summary: invalid bitcast->gep inbounds
Product: libraries
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: nunoplo...@sapo.pt
CC: llvm-bugs@lists.llvm.org, reg...@cs.utah.edu,
spatel+l...@rotateright.com
See below the invalid transformation of a bitcast to a gep inbounds. The input
to the bitcast is a function argument, which could be out-of-bounds.
llvm/test/Transforms/InstCombine/cast.ll
define [4 x float]* @test27([9 x [4 x float]]* %A) {
; CHECK-NEXT: [[C:%.*]] = getelementptr inbounds [9 x [4 x float]], [9 x [4 x
float]]* [[A:%.*]], i64 0, i64 0
%c = bitcast [9 x [4 x float]]* %A to [4 x float]*
ret [4 x float]* %c
}
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