vddvss

--- chromium-77.0.3865.120/third_party/ffmpeg/libavformat/utils.c.orig	2019-10-10 14:55:27.000000000 -0400
+++ chromium-77.0.3865.120/third_party/ffmpeg/libavformat/utils.c	2019-10-17 15:39:59.495117121 -0400
@@ -3316,7 +3316,7 @@

 int ff_rfps_add_frame(AVFormatContext *ic, AVStream *st, int64_t ts)
 {
-    int i, j;
+    volatile int i, j;
     int64_t last = st->info->last_dts;

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#include <stdio.h>
#include <math.h>

struct rect {
	double x, y, w, h;
};

__attribute__((noinline))
void test(struct rect *res, const struct rect *a, const struct rect *b)
{

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target triple = "powerpc64le-unknown-linux-gnu"
%rect = type { double, double, double, double }

; Function Attrs: noinline
define void @test(%rect* %res, %rect* %a, %rect* %b) {
  %a_vec_cast = bitcast %rect* %a to <2 x double>*
  %a_vec = load <2 x double>, <2 x double>* %a_vec_cast

  %b_vec_cast = bitcast %rect* %b to <2 x double>*
  %b_vec = load <2 x double>, <2 x double>* %b_vec_cast

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From 8a774f05eb559437b2ac40dbe62f2b78ac9287a9 Mon Sep 17 00:00:00 2001
From: Colin Samples <colin.samples+git@gmail.com>
Date: Sat, 19 Oct 2019 15:57:08 -0400
Subject: [PATCH] fix optimization

---
 llvm/lib/Target/PowerPC/PPCMIPeephole.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Target/PowerPC/PPCMIPeephole.cpp b/llvm/lib/Target/PowerPC/PPCMIPeephole.cpp

vddvss

From 934fbe8f307027dd54d6c89e1c713cd59d02b820 Mon Sep 17 00:00:00 2001
From: Colin Samples <colin.samples+git@gmail.com>
Date: Sat, 21 Sep 2019 14:00:21 -0400
Subject: [PATCH] Workaround rustc 1.37 code generation issue on ppc

This patch works around an issue where rustc v1.37 emits incorrect code for
rsvg_internal::rect::intersect(), resulting in an incorrect x coordinate for the
intersection rectangle, which trips an assertion in librsvg. This issue does not
occur with rustc v1.36, v1.38 beta, or v1.39 nightly.

vddvss

From 7507b39dd7894ea89f30cec259c593ace1d8f01c Mon Sep 17 00:00:00 2001
From: Colin Samples <colin.samples+git@gmail.com>
Date: Sun, 20 Oct 2019 12:20:55 -0400
Subject: [PATCH] [PPC] Add support for lrint and llrint builtins

This commit adds support for use of lrint and llrint builtins on PPC and fixes a
code generation issue.

r361875 added support for lrint and llrint builtins to LLVM; however, the series
only added support for AArch64, so on PPC ll/lrint was emitted as a function

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diff --git a/swiftshader/0001-Yarn-Add-implementation-for-ppc64-ELFv2.patch b/swiftshader/0001-Yarn-Add-implementation-for-ppc64-ELFv2.patch
index 061fc2b..59e9f6d 100644
--- a/swiftshader/0001-Yarn-Add-implementation-for-ppc64-ELFv2.patch
+++ b/swiftshader/0001-Yarn-Add-implementation-for-ppc64-ELFv2.patch
@@ -14,20 +14,25 @@ Subject: [PATCH] Yarn: Add implementation for ppc64 ELFv2
  create mode 100644 src/Yarn/OSFiber_asm_ppc64.h
  create mode 100644 src/Yarn/OSFiber_ppc64.c
 
-diff --git a/src/Yarn/BUILD.gn b/src/Yarn/BUILD.gn
-index 3236f13a4..87c116871 100644

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# Adapted from: https://github.com/google/marl/commit/d40d56e180b3bcaa738996a3ce14c5a1ba04de20
--- chromium-78.0.3904.70/third_party/swiftshader/src/Yarn/BUILD.gn.orig	2019-10-27 19:03:12.508014905 -0400
+++ chromium-78.0.3904.70/third_party/swiftshader/src/Yarn/BUILD.gn	2019-10-27 19:07:30.113411755 -0400
@@ -49,6 +49,7 @@ swiftshader_source_set("Yarn_headers") {
       "OSFiber_asm_arm.h",
       "OSFiber_asm_x64.h",
       "OSFiber_asm_x86.h",
+      "OSFiber_asm_ppc64.h",
     ]
   }

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== Prune Binaries
ERROR: 10 files could not be pruned.
DEBUG: Files could not be pruned:
tools/skia_goldctl/goldctl
chrome/browser/resources/chromeos/camera/src/sounds/tick.ogg
third_party/pdfium/testing/resources/pixel/bug_512557.in
build/linux/sysroot_scripts/debian-archive-sid-stable.gpg
third_party/boringssl/src/ssl/test/runner/ed25519/testdata/sign.input.gz
third_party/llvm/llvm/test/tools/llvm-readobj/Inputs/relocs.obj.elf-ppc64
third_party/pdfium/testing/resources/pixel/bug_304.in

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--- chromium-80.0.3987.87.orig/third_party/angle/src/compiler/translator/InfoSink.h
+++ chromium-80.0.3987.87/third_party/angle/src/compiler/translator/InfoSink.h
@@ -92,7 +92,16 @@ class TInfoSinkBase
             stream.precision(8);
             stream << f;
         }
-        sink.append(stream.str());
+
+        // Hack to work around a bug where negative floating point values
+        // are rendered like '.0.5' instead of '-0.5'