a6674c7fc9
able to constant fold load instructions where the argument is a constant.
Second, we should be able to watch multiple PHI nodes through the loop; this
patch only supports PHIs in loop headers, more can be done here.
With this patch, we now constant evaluate:
static const int arr[] = {1, 2, 3, 4, 5};
int test() {
int sum = 0;
for (int i = 0; i < 5; ++i) sum += arr[i];
return sum;
}
llvm-svn: 142731
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| clang | ||
| compiler-rt | ||
| debuginfo-tests | ||
| libcxx | ||
| libcxxabi | ||
| lldb | ||
| llvm | ||
| polly | ||