| commit | 79980b07dab50da1a8f572f9504674bfa853d484 | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Wed Sep 13 03:50:39 2006 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Wed Sep 13 03:50:39 2006 +0000 |
| tree | 634eee17798e46465fe388176cde49a8bc8ea80e | |
| parent | f95705163f45648fa58b1c481847b2c10bcb470f [diff] |
Compile X << 1 (where X is a long-long) to:
addl %ecx, %ecx
adcl %eax, %eax
instead of:
movl %ecx, %edx
addl %edx, %edx
shrl $31, %ecx
addl %eax, %eax
orl %ecx, %eax
and to:
addc r5, r5, r5
adde r4, r4, r4
instead of:
slwi r2,r9,1
srwi r0,r11,31
slwi r3,r11,1
or r2,r0,r2
on PPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30284 91177308-0d34-0410-b5e6-96231b3b80d8