diff options
| -rw-r--r-- | lib/Target/X86/README.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt index 1f53227136..40cbd86435 100644 --- a/lib/Target/X86/README.txt +++ b/lib/Target/X86/README.txt @@ -1205,3 +1205,6 @@ __Z11no_overflowjj: //===---------------------------------------------------------------------===// + +Re-materialize MOV32r0 etc. with xor instead of changing them to moves if the +condition register is dead. xor reg reg is shorter than mov reg, #0. |