Properly use GET_GOT/RESTORE_GOT when using GLOBAL().

This should fix binaries using PIC on x86-32. Also should
fix issue 343.

Change-Id: I591de3ad68c8a8bb16054bd8f987a75b4e2bad02

vp8/common/x86/recon_sse2.asm

@@ -593,7 +593,10 @@ sym(vp8_intra_pred_uv_ho_%1):
     push        rsi
     push        rdi
 %ifidn %1, ssse3
+%ifndef GET_GOT_SAVE_ARG
     push        rbx
+%endif
+    GET_GOT     rbx
 %endif
     ; end prolog
 
@@ -606,9 +609,9 @@ sym(vp8_intra_pred_uv_ho_%1):
     mov         rdi,        arg(0) ;dst;
     movsxd      rcx,        dword ptr arg(1) ;dst_stride
 %ifidn %1, ssse3
-    lea         rbx,        [rax*3]
     lea         rdx,        [rcx*3]
     movdqa      xmm2,       [GLOBAL(dc_00001111)]
+    lea         rbx,        [rax*3]
 %endif
     dec         rsi
 %ifidn %1, mmx2
@@ -656,7 +659,10 @@ vp8_intra_pred_uv_ho_%1_loop:
 
     ; begin epilog
 %ifidn %1, ssse3
+    RESTORE_GOT
+%ifndef GET_GOT_SAVE_ARG
     pop         rbx
+%endif
 %endif
     pop         rdi
     pop         rsi

vpx_ports/x86_abi_support.asm

@@ -147,6 +147,7 @@
 %if ABI_IS_32BIT
   %if CONFIG_PIC=1
   %ifidn __OUTPUT_FORMAT__,elf32
+    %define GET_GOT_SAVE_ARG 1
     %define WRT_PLT wrt ..plt
     %macro GET_GOT 1
       extern _GLOBAL_OFFSET_TABLE_
@@ -165,6 +166,7 @@
       %define RESTORE_GOT pop %1
     %endmacro
   %elifidn __OUTPUT_FORMAT__,macho32
+    %define GET_GOT_SAVE_ARG 1
     %macro GET_GOT 1
       push %1
       call %%get_got