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Index: chromium-136.0.7103.48/third_party/libvpx/generate_gni.sh
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===================================================================
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--- chromium-136.0.7103.48.orig/third_party/libvpx/generate_gni.sh
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+++ chromium-136.0.7103.48/third_party/libvpx/generate_gni.sh
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@@ -433,7 +433,7 @@ gen_config_files linux/mipsel "--target=
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 gen_config_files linux/mips64el "--target=mips64-linux-gcc ${all_platforms}"
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 gen_config_files linux/loongarch \
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   "--target=loongarch64-linux-gcc ${all_platforms}"
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-gen_config_files linux/ppc64 "--target=ppc64le-linux-gcc ${all_platforms}"
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+gen_config_files linux/ppc64 "--target=generic-gnu $HIGHBD ${all_platforms}"
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 gen_config_files linux/generic "--target=generic-gnu $HIGHBD ${all_platforms}"
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 gen_config_files win/arm64-highbd \
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   "--target=arm64-win64-vs15 ${all_platforms} ${HIGHBD} ${disable_sve}"
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Index: chromium-136.0.7103.48/third_party/libvpx/source/libvpx/build/make/rtcd.pl
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===================================================================
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--- chromium-136.0.7103.48.orig/third_party/libvpx/source/libvpx/build/make/rtcd.pl
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+++ chromium-136.0.7103.48/third_party/libvpx/source/libvpx/build/make/rtcd.pl
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@@ -527,8 +527,9 @@ if ($opts{arch} eq 'x86') {
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   }
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   arm;
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 } elsif ($opts{arch} =~ /^ppc/ ) {
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-  @ALL_ARCHS = filter(qw/vsx/);
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-  ppc;
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+  #@ALL_ARCHS = filter(qw/vsx/);
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+  #ppc;
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+  unoptimized;
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 } elsif ($opts{arch} =~ /loongarch/ ) {
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   @ALL_ARCHS = filter(qw/lsx lasx/);
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   loongarch;
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Index: chromium-136.0.7103.48/third_party/libvpx/BUILD.gn
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===================================================================
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--- chromium-136.0.7103.48.orig/third_party/libvpx/BUILD.gn
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+++ chromium-136.0.7103.48/third_party/libvpx/BUILD.gn
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@@ -102,6 +102,14 @@ config("libvpx_config") {
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       "-Wno-sign-compare",
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     ]
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   }
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+
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+  if (current_cpu == "ppc64") {
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+    cflags += [
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+      "-mcpu=power8",
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+      "-maltivec",
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+      "-mvsx",
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+    ]
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+  }
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 }
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 # This config is applied to targets that depend on libvpx.