diff options
| -rw-r--r-- | lib/Target/X86/README.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt index a1bb9536b7..5812512c32 100644 --- a/lib/Target/X86/README.txt +++ b/lib/Target/X86/README.txt @@ -1068,8 +1068,8 @@ xorps %xmm0, %xmm0 movss %xmm1, %xmm0 ret -Because mulss multiplies 0*0 = 0.0, the top elements of xmm1 are already zerod. -We could compile this to: +Because mulss doesn't modify the top 3 elements, the top elements of +xmm1 are already zero'd. We could compile this to: movss 4(%esp), %xmm0 mulss %xmm0, %xmm0 |