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 0f2dbd32fee64e446eafc54c0da8b91be70d49a2..a37aba69b74bc24b5797b184db21be82fb23f564 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
 
        // 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
        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 b1072ff2b9fb83fea69082c5fae96b4e36e335e3..9e1d4782bc6f6099420543433cc066a1a1d52c9c 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
 
        // 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
        add     edi, 4
        adc     eax, 0
        cmp     edi, edx