build: remove precompiled header and debug information for host builds

PR-URL: #42538
Refs: #42375
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

Author: niyas-sait

common.gypi

@@ -286,7 +286,11 @@
       'VCCLCompilerTool': {
         'AdditionalOptions': ['/Zc:__cplusplus'],
         'BufferSecurityCheck': 'true',
-        'DebugInformationFormat': 1,          # /Z7 embed info in .obj files
+        'target_conditions': [
+          ['_toolset=="target"', {
+            'DebugInformationFormat': 1      # /Z7 embed info in .obj files
+          }],
+        ],
         'ExceptionHandling': 0,               # /EHsc
         'MultiProcessorCompilation': 'true',
         'StringPooling': 'true',              # pool string literals

tools/v8_gypfiles/v8.gyp

@@ -342,7 +342,7 @@
              '<(V8_ROOT)/src/builtins/builtins-intl-gen.cc',
            ],
          }],
-        ['OS=="win"', {
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
@@ -706,7 +706,7 @@
         ['want_separate_host_toolset', {
           'toolsets': ['host', 'target'],
         }],
-        ['OS=="win"', {
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
@@ -733,7 +733,7 @@
         ['want_separate_host_toolset', {
           'toolsets': ['host', 'target'],
         }],
-        ['OS=="win"', {
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
@@ -905,13 +905,20 @@
             '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_current_cpu == \\"riscv64\\".*?sources \\+= ")',
           ],
         }],        
-        ['OS=="win"', {
+        ['v8_target_arch=="loong64"', {
+          'sources': [
+            '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_current_cpu == \\"loong64\\".*?sources \\+= ")',
+          ],
+        }],        
+        ['OS=="win" and _toolset=="target"', {
           'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
           'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',
           'sources': [
             '<(_msvs_precompiled_header)',
             '<(_msvs_precompiled_source)',
-          ],
+          ]
+        }],
+        ['OS=="win"', {
           # This will prevent V8's .cc files conflicting with the inspector's
           # .cpp files in the same shard.
           'msvs_settings': {