commit 34587b99d55ee3c0392394c5a27478284ac9fdac
Author: T.Kabe <kabe@>
Date:   Mon May 18 00:35:23 2026 +0900

    -mpfmath=sse -> mfpmath=387

diff --git a/src/3rdparty/chromium/build/config/compiler/BUILD.gn b/src/3rdparty/chromium/build/config/compiler/BUILD.gn
index bb3fba0d2..ddb378574 100644
--- a/src/3rdparty/chromium/build/config/compiler/BUILD.gn
+++ b/src/3rdparty/chromium/build/config/compiler/BUILD.gn
@@ -1286,7 +1286,7 @@ config("compiler_cpu_abi") {
       ldflags += [ "-m32" ]
       if (!is_nacl) {
         cflags += [
-          "-mfpmath=sse",
+          "-mfpmath=387",
           "-msse3",
         ]
       }
diff --git a/src/3rdparty/chromium/third_party/dav1d/libdav1d/meson.build b/src/3rdparty/chromium/third_party/dav1d/libdav1d/meson.build
index 097ffe4e3..2c052aabd 100644
--- a/src/3rdparty/chromium/third_party/dav1d/libdav1d/meson.build
+++ b/src/3rdparty/chromium/third_party/dav1d/libdav1d/meson.build
@@ -299,7 +299,7 @@ if cc.get_argument_syntax() != 'msvc'
     if host_machine.cpu_family() == 'x86'
         optional_arguments += [
           '-msse2',
-          '-mfpmath=sse',
+          '-mfpmath=387',
         ]
     endif
 else
diff --git a/src/3rdparty/chromium/third_party/highway/src/CMakeLists.txt b/src/3rdparty/chromium/third_party/highway/src/CMakeLists.txt
index 991135da7..4c393d253 100644
--- a/src/3rdparty/chromium/third_party/highway/src/CMakeLists.txt
+++ b/src/3rdparty/chromium/third_party/highway/src/CMakeLists.txt
@@ -322,7 +322,7 @@ else()
 
   # Workaround for excess precision, see #1488.
   if (HWY_CMAKE_SSE2)
-    list(APPEND HWY_FLAGS -msse2 -mfpmath=sse)
+    list(APPEND HWY_FLAGS -msse2 -mfpmath=387)
   endif()
 
   # Suppress STL iterator warnings. Supported by GCC 4.4.7 and newer, which
diff --git a/src/3rdparty/chromium/third_party/perfetto/gn/standalone/BUILD.gn b/src/3rdparty/chromium/third_party/perfetto/gn/standalone/BUILD.gn
index 36fb6371a..1ec28af3c 100644
--- a/src/3rdparty/chromium/third_party/perfetto/gn/standalone/BUILD.gn
+++ b/src/3rdparty/chromium/third_party/perfetto/gn/standalone/BUILD.gn
@@ -279,7 +279,7 @@ config("default") {
     cflags += [
       "-m32",
       "-msse2",
-      "-mfpmath=sse",
+      "-mfpmath=387",
     ]
     ldflags += [ "-m32" ]
   } else if (current_cpu == "arm64") {
diff --git a/src/3rdparty/chromium/third_party/skia/gn/skia/BUILD.gn b/src/3rdparty/chromium/third_party/skia/gn/skia/BUILD.gn
index 94632fa75..dee92f5d0 100644
--- a/src/3rdparty/chromium/third_party/skia/gn/skia/BUILD.gn
+++ b/src/3rdparty/chromium/third_party/skia/gn/skia/BUILD.gn
@@ -164,7 +164,7 @@ config("default") {
     cflags += [
       "-m32",
       "-msse2",
-      "-mfpmath=sse",
+      "-mfpmath=387",
     ]
     ldflags += [ "-m32" ]
   } else if (current_cpu == "loong64") {
diff --git a/src/3rdparty/chromium/third_party/swiftshader/CMakeLists.txt b/src/3rdparty/chromium/third_party/swiftshader/CMakeLists.txt
index c5cd16d55..8ce5172d8 100644
--- a/src/3rdparty/chromium/third_party/swiftshader/CMakeLists.txt
+++ b/src/3rdparty/chromium/third_party/swiftshader/CMakeLists.txt
@@ -507,7 +507,7 @@ else()
     if(ARCH STREQUAL "x86")
         set_cpp_flag("-m32")
         set_cpp_flag("-msse2")
-        set_cpp_flag("-mfpmath=sse")
+        set_cpp_flag("-mfpmath=387")
         set_cpp_flag("-march=pentium4")
         set_cpp_flag("-mtune=generic")
     endif()