| commit | 44205cadba047b1322a235b8cd1be5f4423a8f93 | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Sat Nov 13 20:03:48 2004 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Sat Nov 13 20:03:48 2004 +0000 |
| tree | 4191c5eb1f08785e2ffb8248da61ba723d9affa5 | |
| parent | 50af16a97b3983c224a48ae4369d7e9facf8174e [diff] |
Compile:
long long X3_2(long long Y) { return Y+Y; }
int X(int Y) { return Y+Y; }
into:
X3_2:
movl 4(%esp), %eax
movl 8(%esp), %edx
addl %eax, %eax
adcl %edx, %edx
ret
X:
movl 4(%esp), %eax
addl %eax, %eax
ret
instead of:
X3_2:
movl 4(%esp), %eax
movl 8(%esp), %edx
shldl $1, %eax, %edx
shll $1, %eax
ret
X:
movl 4(%esp), %eax
shll $1, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17705 91177308-0d34-0410-b5e6-96231b3b80d8