---
 libavutil/x86/float_dsp.asm |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/libavutil/x86/float_dsp.asm b/libavutil/x86/float_dsp.asm
index 4a1742f..dc75532 100644
--- a/libavutil/x86/float_dsp.asm
+++ b/libavutil/x86/float_dsp.asm
@@ -127,6 +127,9 @@ cglobal vector_dmul_scalar, 3,3,3, dst, src, len
 cglobal vector_dmul_scalar, 4,4,3, dst, src, mul, len
 %endif
 %if ARCH_X86_32
+    ; PROLOGUE loads len from the wrong stack address because mul is an 8-byte
+    ; parameter and PROLOGUE assumes all parameters are 4-byte
+    mov          lenq, [esp+0x18]
     VBROADCASTSD   m0, mulm
 %else
 %if WIN64
-- 
1.7.1

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