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authorMans Rullgard <mans@mansr.com>2012-08-06 02:26:15 +0100
committerMans Rullgard <mans@mansr.com>2012-08-07 15:24:34 +0100
commitedd82267958fbbd34eca4f4dbfb96197b9b40ab5 (patch)
treea9e0ac61915f4d0fa1a6b88d0588b5356758ce10 /libavutil
parent180d43bc67cec071c5a0f4807aa66f7b6242edc1 (diff)
x86: fix build with nasm 2.08
It appears that something goes wrong in old nasm versions when the %+ operator is used in the last argument of a macro invocation and this argument is tested with %ifdef within the macro. This patch rearranges the macro arguments such that the %+ operator is never used in the last argument.
Diffstat (limited to 'libavutil')
-rw-r--r--libavutil/x86/x86inc.asm18
1 files changed, 7 insertions, 11 deletions
diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm
index e729924631..5cb200fb16 100644
--- a/libavutil/x86/x86inc.asm
+++ b/libavutil/x86/x86inc.asm
@@ -505,12 +505,8 @@ DECLARE_ARG 7, 8, 9, 10, 11, 12, 13, 14
; Applies any symbol mangling needed for C linkage, and sets up a define such that
; subsequent uses of the function name automatically refer to the mangled version.
; Appends cpuflags to the function name if cpuflags has been specified.
-%macro cglobal 1-2+ ; name, [PROLOGUE args]
-%if %0 == 1
- cglobal_internal %1 %+ SUFFIX
-%else
+%macro cglobal 1-2+ "" ; name, [PROLOGUE args]
cglobal_internal %1 %+ SUFFIX, %2
-%endif
%endmacro
%macro cglobal_internal 1-2+
%ifndef cglobaled_%1
@@ -528,7 +524,7 @@ DECLARE_ARG 7, 8, 9, 10, 11, 12, 13, 14
%1:
RESET_MM_PERMUTATION ; not really needed, but makes disassembly somewhat nicer
%assign stack_offset 0
- %if %0 > 1
+ %ifnidn %2, ""
PROLOGUE %2
%endif
%endmacro
@@ -795,13 +791,13 @@ INIT_XMM
; Append cpuflags to the callee's name iff the appended name is known and the plain name isn't
%macro call 1
- call_internal %1, %1 %+ SUFFIX
+ call_internal %1 %+ SUFFIX, %1
%endmacro
%macro call_internal 2
- %xdefine %%i %1
- %ifndef cglobaled_%1
- %ifdef cglobaled_%2
- %xdefine %%i %2
+ %xdefine %%i %2
+ %ifndef cglobaled_%2
+ %ifdef cglobaled_%1
+ %xdefine %%i %1
%endif
%endif
call %%i