[FFmpeg-cvslog] x86/sbrdsp: sign extend start and end gprs in ff_sbr_hf_gen_sse

[James Almer]

ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Thu Jun 29 22:51:04 2017 -0300| [ac8ad8d0981baee33bc5e9cd3b0a44643971f2e8] | committer: James Almer

x86/sbrdsp: sign extend start and end gprs in ff_sbr_hf_gen_sse

Tested-by: Michael Niedermayer <michael at niedermayer.cc>
Signed-off-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ac8ad8d0981baee33bc5e9cd3b0a44643971f2e8
---

 libavcodec/x86/sbrdsp.asm | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/libavcodec/x86/sbrdsp.asm b/libavcodec/x86/sbrdsp.asm
index d0f774b277..c716184b14 100644
--- a/libavcodec/x86/sbrdsp.asm
+++ b/libavcodec/x86/sbrdsp.asm
@@ -149,19 +149,19 @@ cglobal sbr_hf_gen, 4,4,8, X_high, X_low, alpha0, alpha1, BW, S, E
     ; start and end 6th and 7th args on stack
     mov        r2d, Sm
     mov        r3d, Em
-%define  start r2q
-%define  end   r3q
+    DEFINE_ARGS X_high, X_low, start, end
 %else
 ; BW does not actually occupy a register, so shift by 1
-%define  start BWq
-%define  end   Sq
+    DEFINE_ARGS X_high, X_low, alpha0, alpha1, start, end
+    movsxd  startq, startd
+    movsxd    endq, endd
 %endif
-    sub      start, end          ; neg num of loops
-    lea    X_highq, [X_highq + end*2*4]
-    lea     X_lowq, [X_lowq  + end*2*4 - 2*2*4]
-    shl      start, 3            ; offset from num loops
+    sub     startq, endq         ; neg num of loops
+    lea    X_highq, [X_highq + endq*2*4]
+    lea     X_lowq, [X_lowq  + endq*2*4 - 2*2*4]
+    shl     startq, 3            ; offset from num loops
 
-    mova        m0, [X_lowq + start]
+    mova        m0, [X_lowq + startq]
     shufps      m3, m3, q1111
     shufps      m4, m4, q1111
     xorps       m3, [ps_mask]
@@ -169,7 +169,7 @@ cglobal sbr_hf_gen, 4,4,8, X_high, X_low, alpha0, alpha1, BW, S, E
     shufps      m2, m2, q0000
     xorps       m4, [ps_mask]
 .loop2:
-    movu        m7, [X_lowq + start + 8]        ; BbCc
+    movu        m7, [X_lowq + startq + 8]       ; BbCc
     mova        m6, m0
     mova        m5, m7
     shufps      m0, m0, q2301                   ; aAbB
@@ -179,12 +179,12 @@ cglobal sbr_hf_gen, 4,4,8, X_high, X_low, alpha0, alpha1, BW, S, E
     mulps       m6, m2
     mulps       m5, m1
     addps       m7, m0
-    mova        m0, [X_lowq + start +16]        ; CcDd
+    mova        m0, [X_lowq + startq + 16]      ; CcDd
     addps       m7, m0
     addps       m6, m5
     addps       m7, m6
-    mova  [X_highq + start], m7
-    add     start, 16
+    mova  [X_highq + startq], m7
+    add     startq, 16
     jnz         .loop2
     RET