From c858cc76099db0af82a264b3c6f921a287cfcb42 Mon Sep 17 00:00:00 2001
From: Allan Sandfeld Jensen <allan.jensen@qt.io>
Date: Wed, 24 Jan 2018 14:07:00 +0100
Subject: Work-around internal compiler error in gcc 7 and 8

The compiler crashes when trying to resolve a compile time division.
We can avoid it being compile-time by making the function producing the
numbers non-inline.

Change-Id: I152c4955ef974c7b45bb1f42d5ce8c55b9a2d7cc
Reviewed-by: Michal Klocek <michal.klocek@qt.io>
---
 .../third_party/WebKit/Source/platform/audio/IIRFilter.cpp | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/chromium/third_party/WebKit/Source/platform/audio/IIRFilter.cpp b/chromium/third_party/WebKit/Source/platform/audio/IIRFilter.cpp
index 7972d976674..0358bf55741 100644
--- a/chromium/third_party/WebKit/Source/platform/audio/IIRFilter.cpp
+++ b/chromium/third_party/WebKit/Source/platform/audio/IIRFilter.cpp
@@ -34,9 +34,15 @@ void IIRFilter::Reset() {
   buffer_index_ = 0;
 }
 
-static std::complex<double> EvaluatePolynomial(const double* coef,
-                                               std::complex<double> z,
-                                               int order) {
+#ifdef __GNUC__
+#define noinline __attribute__((noinline))
+#else
+#define noinline
+#endif
+
+static noinline std::complex<double> EvaluatePolynomial(const double* coef,
+                                                        std::complex<double> z,
+                                                        int order) {
   // Use Horner's method to evaluate the polynomial P(z) = sum(coef[k]*z^k, k,
   // 0, order);
   std::complex<double> result = 0;
@@ -47,6 +53,8 @@ static std::complex<double> EvaluatePolynomial(const double* coef,
   return result;
 }
 
+#undef noinline
+
 void IIRFilter::Process(const float* source_p,
                         float* dest_p,
                         size_t frames_to_process) {
-- 
cgit v1.2.3