math/mpx-mul4-*-sse2.S: Remove an unhelpful comment.

It's not actually wrong, but it's misleading because we don't actually
care that the flags are preserved at this point, because the next
instruction clobbers them anyway.  I think this was cut-and-paste
lossage from the earlier code which relies on `mov' preserving the carry
flag.

diff --git a/math/mpx-mul4-amd64-sse2.S b/math/mpx-mul4-amd64-sse2.S
index 0f2dbd3..a37aba6 100644 (file)
--- a/math/mpx-mul4-amd64-sse2.S
+++ b/math/mpx-mul4-amd64-sse2.S
@@ -1262,7 +1262,7 @@ FUNC(mpxmont_redc4_amd64_sse2)
 
        // Deal with the tail end.
 7:     add     [rdi], C
-       mov     C, 0                    // preserves flags
+       mov     C, 0
        add     rdi, 4
        adc     C, 0
        cmp     rdi, DVL

diff --git a/math/mpx-mul4-x86-sse2.S b/math/mpx-mul4-x86-sse2.S
index b1072ff..9e1d478 100644 (file)
--- a/math/mpx-mul4-x86-sse2.S
+++ b/math/mpx-mul4-x86-sse2.S
@@ -1064,7 +1064,7 @@ FUNC(mpxmont_redc4_x86_sse2)
 
        // Deal with the tail end.
 7:     add     [edi], eax
-       mov     eax, 0                  // preserves flags
+       mov     eax, 0
        add     edi, 4
        adc     eax, 0
        cmp     edi, edx