| commit | 07649d9265c9a378fe753f80601ae5f4de3312dc | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Tue Jan 08 23:08:06 2008 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Tue Jan 08 23:08:06 2008 +0000 |
| tree | 2eabcc37ee50dfa67da49656a189f8e3b9214e07 | |
| parent | 0c5714bb9944ed085fb5854ac4c6abf941c532ed [diff] |
Make load->store deletion a bit smarter. This allows us to compile this:
void test(long long *P) { *P ^= 1; }
into just:
_test:
movl 4(%esp), %eax
xorl $1, (%eax)
ret
instead of code like this:
_test:
movl 4(%esp), %ecx
xorl $1, (%ecx)
movl 4(%ecx), %edx
movl %edx, 4(%ecx)
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45762 91177308-0d34-0410-b5e6-96231b3b80d8