https://bugs.llvm.org/show_bug.cgi?id=49898
Bug ID: 49898
Summary: Infinite loop in SLP vectorizer after
99203f2004d031f2ef22f01e3c569d2775de1836
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
$ cat t.ll
define void @fusion_1506(i8* %temp_buf1) local_unnamed_addr {
entry:
%0 = getelementptr inbounds i8, i8* %temp_buf1, i64 5621415936
%1 = getelementptr inbounds i8, i8* %temp_buf1, i64 7278166016
%2 = getelementptr inbounds i8, i8* %temp_buf1, i64 5097127936
%3 = bitcast i8* %2 to float*
%4 = bitcast i8* %1 to float*
%5 = getelementptr inbounds float, float* %4, i64 undef
store float undef, float* %5, align 16
%6 = bitcast i8* %0 to float*
%7 = getelementptr inbounds float, float* %6, i64 undef
store float undef, float* %7, align 16
%8 = getelementptr inbounds float, float* %6, i64 undef
store float undef, float* %8, align 4
%9 = getelementptr inbounds float, float* %3, i64 undef
store float undef, float* %9, align 4
ret void
}
$ opt t.ll -slp-vectorizer -S
<hangs>
This worked before
https://github.com/llvm/llvm-project/commit/99203f2004d031f2ef22f01e3c569d2775de1836
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