| Issue |
148390
|
| Summary |
[LV] must have a resume value for the canonical IV
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
sjoerdmeijer
|
Compiling this:
```
#include <algorithm>
extern char a;
unsigned short e;
long b;
short *c, *d;
void fn1(short f[][3], int g[][3], short h[][3]) {
for (int i; i < 3ULL; i += 5ULL)
for (int k; c[i]; k += 2)
#pragma clang loop vectorize_predicate(enable)
for (int j(((4 ? c[2] : 0) || d[i]) - 1); j < -108 - 18446744073709551485;
j += 3) {
a = 0 != f[1][j];
b = g[1][k] = std::min(e, (unsigned short)h[2][k]);
}
}
```
with `-Ofast -mcpu=grace -std=c++11` results in:
```
clang++: llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:9759: void preparePlanForEpilogueVectorLoop(VPlan &, Loop *, const SCEV2ValueTy &, const EpilogueLoopVectorizationInfo &): Assertion `EPResumeVal && "must have a resume value for the canonical IV"' failed.
```
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