build.gn fixes for windows

arm/build/config/win/BUILD.gn

@@ -615,3 +615,15 @@ config("lean_and_mean") {
 config("nominmax") {
   defines = [ "NOMINMAX" ]
 }
+
+# Some binaries create PDBs larger than 4 GiB. Increasing the PDB page size
+# to 8 KiB allows 8 GiB PDBs. The larger page size also allows larger block maps
+# which is a PDB limit that was hit in https://crbug.com/1406510. The page size
+# can easily be increased in the future to allow even larger PDBs or larger
+# block maps.
+config("pdb_larger_than_4gb") {
+  if (!defined(ldflags)) {
+    ldflags = []
+  }
+  ldflags += [ "/pdbpagesize:8192" ]
+}

other/AVX2/build/config/compiler/BUILD.gn

@@ -2095,7 +2095,6 @@ if (is_win) {
   ]
 
   common_optimize_on_ldflags += [
-    "-mllvm:-freroll-loops",
     "-mllvm:-extra-vectorizer-passes",
     "-mllvm:-enable-cond-stores-vec",
     "-mllvm:-slp-vectorize-hor-store",

other/AVX2/build/config/win/BUILD.gn

@@ -622,3 +622,15 @@ config("lean_and_mean") {
 config("nominmax") {
   defines = [ "NOMINMAX" ]
 }
+
+# Some binaries create PDBs larger than 4 GiB. Increasing the PDB page size
+# to 8 KiB allows 8 GiB PDBs. The larger page size also allows larger block maps
+# which is a PDB limit that was hit in https://crbug.com/1406510. The page size
+# can easily be increased in the future to allow even larger PDBs or larger
+# block maps.
+config("pdb_larger_than_4gb") {
+  if (!defined(ldflags)) {
+    ldflags = []
+  }
+  ldflags += [ "/pdbpagesize:8192" ]
+}

other/SSE2/build/config/compiler/BUILD.gn

@@ -2089,7 +2089,6 @@ if (is_win) {
   ]
 
   common_optimize_on_ldflags += [
-    "-mllvm:-freroll-loops",
     "-mllvm:-extra-vectorizer-passes",
     "-mllvm:-enable-cond-stores-vec",
     "-mllvm:-slp-vectorize-hor-store",

other/SSE2/build/config/win/BUILD.gn

@@ -611,3 +611,15 @@ config("lean_and_mean") {
 config("nominmax") {
   defines = [ "NOMINMAX" ]
 }
+
+# Some binaries create PDBs larger than 4 GiB. Increasing the PDB page size
+# to 8 KiB allows 8 GiB PDBs. The larger page size also allows larger block maps
+# which is a PDB limit that was hit in https://crbug.com/1406510. The page size
+# can easily be increased in the future to allow even larger PDBs or larger
+# block maps.
+config("pdb_larger_than_4gb") {
+  if (!defined(ldflags)) {
+    ldflags = []
+  }
+  ldflags += [ "/pdbpagesize:8192" ]
+}

other/SSE3/build/config/compiler/BUILD.gn

@@ -2089,7 +2089,6 @@ if (is_win) {
   ]
 
   common_optimize_on_ldflags += [
-    "-mllvm:-freroll-loops",
     "-mllvm:-extra-vectorizer-passes",
     "-mllvm:-enable-cond-stores-vec",
     "-mllvm:-slp-vectorize-hor-store",

other/SSE3/build/config/win/BUILD.gn

@@ -612,3 +612,15 @@ config("lean_and_mean") {
 config("nominmax") {
   defines = [ "NOMINMAX" ]
 }
+
+# Some binaries create PDBs larger than 4 GiB. Increasing the PDB page size
+# to 8 KiB allows 8 GiB PDBs. The larger page size also allows larger block maps
+# which is a PDB limit that was hit in https://crbug.com/1406510. The page size
+# can easily be increased in the future to allow even larger PDBs or larger
+# block maps.
+config("pdb_larger_than_4gb") {
+  if (!defined(ldflags)) {
+    ldflags = []
+  }
+  ldflags += [ "/pdbpagesize:8192" ]
+}

src/build/config/compiler/BUILD.gn

@@ -2086,7 +2086,6 @@ if (is_win) {
   ]
 
   common_optimize_on_ldflags += [
-    "-mllvm:-freroll-loops",
     "-mllvm:-extra-vectorizer-passes",
     "-mllvm:-enable-cond-stores-vec",
     "-mllvm:-slp-vectorize-hor-store",

src/build/config/win/BUILD.gn

@@ -615,3 +615,15 @@ config("lean_and_mean") {
 config("nominmax") {
   defines = [ "NOMINMAX" ]
 }
+
+# Some binaries create PDBs larger than 4 GiB. Increasing the PDB page size
+# to 8 KiB allows 8 GiB PDBs. The larger page size also allows larger block maps
+# which is a PDB limit that was hit in https://crbug.com/1406510. The page size
+# can easily be increased in the future to allow even larger PDBs or larger
+# block maps.
+config("pdb_larger_than_4gb") {
+  if (!defined(ldflags)) {
+    ldflags = []
+  }
+  ldflags += [ "/pdbpagesize:8192" ]
+}