[FFmpeg-devel] [PATCH] configure: Remove dcbzl check for e500v1 and e500v2 architectures

Peter Krefting peter at softwolves.pp.se
Thu Feb 6 12:51:39 CET 2014


The DCBZL instruction is not available for the e500v1 and e500v2
architectures, but may still be recognized by the toolchain, so we need to
remove the test for it explicitly for these architectures.

References: PowerPC™ e500 Core Family Reference Manual (Freescale)

Found-by: Ståle Kristoffersen <staalebk at ifi.uio.no>
---
  configure | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 32bc5ba..2bd7f64 100755
--- a/configure
+++ b/configure
@@ -4147,7 +4147,8 @@ elif enabled ppc; then

      enable local_aligned_8 local_aligned_16

-    check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
+    [ $cpu != e500 -a $cpu != e500v2 ] &&
+     check_inline_asm dcbzl    '"dcbzl 0, %0" :: "r"(0)'
      check_inline_asm ibm_asm   '"add 0, 0, 0"'
      check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
      check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
-- 
1.9.rc1


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