| Issue |
76487
|
| Summary |
missed optimization: redundant store is not optimized away (test case with struct)
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
k-arrows
|
Test case from gcc testsuite (https://github.com/gcc-mirror/gcc/blob/master/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-85.c)
```c
struct X { int i; int j; };
struct X x, y;
void foo ()
{
x.i = 1;
y = x;
y.i = 1; // redundant
}
```
https://godbolt.org/z/nEzqGx57h
The last store in the function `foo` is redundant and can be optimized away.
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