https://gcc.gnu.org/bugzilla/show_bug.cgi?id=73285
Bug ID: 73285
Summary: perhaps avoid duplication?
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: drepper.fsp+rhbz at gmail dot com
Target Milestone: ---
For some architectures functions with different interfaces generate identical
code. For instance, on x86-64 (not the old x86 ABI):
double f1(int a, double b)
{
return a + b;
}
double f2(double a, int b)
{
return a + b;
}
Obviously the reason is that the parameters are stored in the same registers
for both functions.
Perhaps this could be recognized and the compiler could avoid generating the
code twice?
