From ed9dc14cbfa6430b4e10ba9a290fa9b884897aed Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Sun, 24 Dec 2017 20:45:30 -0300
Subject: [PATCH] x86inc: set the correct amount of simd regs in x86_64 when
 avx512 is enabled but not used

Fixes compilation of libavresample/x86/audio_mix.asm

Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavutil/x86/x86inc.asm | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm
index f3dd2b788a..b30c55c673 100644
--- a/libavutil/x86/x86inc.asm
+++ b/libavutil/x86/x86inc.asm
@@ -919,19 +919,22 @@ BRANCH_INSTR jz, je, jnz, jne, jl, jle, jnl, jnle, jg, jge, jng, jnge, ja, jae,
     %define mmsize 16
     %define num_mmregs 8
     %if ARCH_X86_64
-        %define num_mmregs 32
+        %define num_mmregs 16
     %endif
     %define mova movdqa
     %define movu movdqu
     %define movh movq
     %define movnta movntdq
+    INIT_CPUFLAGS %1
+    %if cpuflag(avx512)
+        %define num_mmregs 32
+    %endif
     %assign %%i 0
     %rep num_mmregs
         CAT_XDEFINE m, %%i, xmm %+ %%i
         CAT_XDEFINE nnxmm, %%i, %%i
         %assign %%i %%i+1
     %endrep
-    INIT_CPUFLAGS %1
     %if WIN64
         ; Swap callee-saved registers with volatile registers
         AVX512_MM_PERMUTATION 6
@@ -944,19 +947,22 @@ BRANCH_INSTR jz, je, jnz, jne, jl, jle, jnl, jnle, jg, jge, jng, jnge, ja, jae,
     %define mmsize 32
     %define num_mmregs 8
     %if ARCH_X86_64
-        %define num_mmregs 32
+        %define num_mmregs 16
     %endif
     %define mova movdqa
     %define movu movdqu
     %undef movh
     %define movnta movntdq
+    INIT_CPUFLAGS %1
+    %if cpuflag(avx512)
+        %define num_mmregs 32
+    %endif
     %assign %%i 0
     %rep num_mmregs
         CAT_XDEFINE m, %%i, ymm %+ %%i
         CAT_XDEFINE nnymm, %%i, %%i
         %assign %%i %%i+1
     %endrep
-    INIT_CPUFLAGS %1
     AVX512_MM_PERMUTATION
 %endmacro

--
2.15.0