From: Mark Wooding <mdw@distorted.org.uk>
Date: Fri, 16 Nov 2018 12:51:39 +0000 (+0000)
Subject: math/mpx-mul4-amd64-sse2.S: Always collect iteration count as 32 bits.
X-Git-Tag: 2.4.3~8
X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/commitdiff_plain/49b0f1b429467da3e46118a608a38e142dc7657e

math/mpx-mul4-amd64-sse2.S: Always collect iteration count as 32 bits.

Some ABIs, at least, don't guarantee to zero-extend arguments, and we
use the counter as an address offset.
---

diff --git a/math/mpx-mul4-amd64-sse2.S b/math/mpx-mul4-amd64-sse2.S
index 098de450..9146a63f 100644
--- a/math/mpx-mul4-amd64-sse2.S
+++ b/math/mpx-mul4-amd64-sse2.S
@@ -1365,7 +1365,7 @@ ENDFUNC
 	mov	rbx, r8
 	movdqu	xmm8, [r9]
 	movdqu	xmm10, [rax]
-	mov	r8, STKARG(1)
+	mov	r8d, STKARG(1)
 	mov	r9, STKARG(2)
 	mov	r10, rdx
 	mov	r11, rcx
@@ -1374,7 +1374,7 @@ ENDFUNC
   .ifeqs "\mode", "mont"
 	mov	rbx, rcx
 	movdqu	xmm8, [r8]
-	mov	r8, r9
+	mov	r8d, r9d
 	mov	r9, STKARG(0)
 	mov	r10, rdx
 	mov	rcx, rsi
@@ -1402,16 +1402,16 @@ ENDFUNC
 	mov	rbx, r9
 	movdqu	xmm8, [r10]
 	movdqu	xmm10, [r11]
-	mov	r8, STKARG(2)
-	mov	r9, STKARG(3)
 	mov	r11, r8
+	mov	r8d, STKARG(2)
+	mov	r9, STKARG(3)
   .endif
   .ifeqs "\mode", "smul"
 	mov	rdi, rcx
 	mov	rcx, rdx
 	mov	rbx, r8
 	movdqu	xmm10, [r9]
-	mov	r8, STKARG(0)
+	mov	r8d, STKARG(0)
 	mov	r9, STKARG(1)
   .endif
   .ifeqs "\mode", "mmul"
@@ -1422,10 +1422,10 @@ ENDFUNC
 	mov	rbx, STKARG(0)
 	movdqu	xmm8, [r10]
 	movdqu	xmm10, [r11]
-	mov	r8, STKARG(3)
-	mov	r9, STKARG(4)
 	mov	r10, r8
 	mov	r11, r9
+	mov	r8d, STKARG(3)
+	mov	r9, STKARG(4)
   .endif
   .ifeqs "\mode", "mont"
 	mov	r10, STKARG(0)
@@ -1433,9 +1433,9 @@ ENDFUNC
 	mov	rcx, rdx
 	mov	rbx, r9
 	movdqu	xmm8, [r10]
-	mov	r8, STKARG(1)
-	mov	r9, STKARG(2)
 	mov	r10, r8
+	mov	r8d, STKARG(1)
+	mov	r9, STKARG(2)
   .endif
 #endif