Auto-generate files after cl/900787189

Author: protobuf-team-bot

php/ext/google/protobuf/php-upb.c

@@ -448,21 +448,8 @@ Error, UINTPTR_MAX is undefined
 #define UPB_ARM64_BTI_DEFAULT 0
 #endif
 
-/* This check is not fully robust: it does not require that we have "musttail"
- * support available. We need tail calls to avoid consuming arbitrary amounts
- * of stack space.
- *
- * GCC/Clang can mostly be trusted to generate tail calls as long as
- * optimization is enabled, but, debug builds will not generate tail calls
- * unless "musttail" is available.
- *
- * We should probably either:
- *   1. require that the compiler supports musttail.
- *   2. add some fallback code for when musttail isn't available (ie. return
- *      instead of tail calling). This is safe and portable, but this comes at
- *      a CPU cost.
- */
-#if (defined(__x86_64__) || defined(__aarch64__)) && defined(__GNUC__)
+#if (defined(__x86_64__) || defined(__aarch64__)) && \
+    UPB_HAS_ATTRIBUTE(preserve_none) && UPB_HAS_ATTRIBUTE(musttail)
 #define UPB_FASTTABLE_SUPPORTED 1
 #else
 #define UPB_FASTTABLE_SUPPORTED 0
@@ -473,7 +460,7 @@ Error, UINTPTR_MAX is undefined
  * for example for testing or benchmarking. */
 #if defined(UPB_ENABLE_FASTTABLE)
 #if !UPB_FASTTABLE_SUPPORTED
-#error fasttable is x86-64/ARM64 only and requires GCC or Clang.
+#error fasttable is x86-64/ARM64 only and requires preserve_none and musttail.
 #endif
 #define UPB_FASTTABLE 1
 /* Define UPB_TRY_ENABLE_FASTTABLE to use fasttable if possible.

php/ext/google/protobuf/php-upb.h

@@ -447,21 +447,8 @@ Error, UINTPTR_MAX is undefined
 #define UPB_ARM64_BTI_DEFAULT 0
 #endif
 
-/* This check is not fully robust: it does not require that we have "musttail"
- * support available. We need tail calls to avoid consuming arbitrary amounts
- * of stack space.
- *
- * GCC/Clang can mostly be trusted to generate tail calls as long as
- * optimization is enabled, but, debug builds will not generate tail calls
- * unless "musttail" is available.
- *
- * We should probably either:
- *   1. require that the compiler supports musttail.
- *   2. add some fallback code for when musttail isn't available (ie. return
- *      instead of tail calling). This is safe and portable, but this comes at
- *      a CPU cost.
- */
-#if (defined(__x86_64__) || defined(__aarch64__)) && defined(__GNUC__)
+#if (defined(__x86_64__) || defined(__aarch64__)) && \
+    UPB_HAS_ATTRIBUTE(preserve_none) && UPB_HAS_ATTRIBUTE(musttail)
 #define UPB_FASTTABLE_SUPPORTED 1
 #else
 #define UPB_FASTTABLE_SUPPORTED 0
@@ -472,7 +459,7 @@ Error, UINTPTR_MAX is undefined
  * for example for testing or benchmarking. */
 #if defined(UPB_ENABLE_FASTTABLE)
 #if !UPB_FASTTABLE_SUPPORTED
-#error fasttable is x86-64/ARM64 only and requires GCC or Clang.
+#error fasttable is x86-64/ARM64 only and requires preserve_none and musttail.
 #endif
 #define UPB_FASTTABLE 1
 /* Define UPB_TRY_ENABLE_FASTTABLE to use fasttable if possible.

ruby/ext/google/protobuf_c/ruby-upb.c

@@ -448,21 +448,8 @@ Error, UINTPTR_MAX is undefined
 #define UPB_ARM64_BTI_DEFAULT 0
 #endif
 
-/* This check is not fully robust: it does not require that we have "musttail"
- * support available. We need tail calls to avoid consuming arbitrary amounts
- * of stack space.
- *
- * GCC/Clang can mostly be trusted to generate tail calls as long as
- * optimization is enabled, but, debug builds will not generate tail calls
- * unless "musttail" is available.
- *
- * We should probably either:
- *   1. require that the compiler supports musttail.
- *   2. add some fallback code for when musttail isn't available (ie. return
- *      instead of tail calling). This is safe and portable, but this comes at
- *      a CPU cost.
- */
-#if (defined(__x86_64__) || defined(__aarch64__)) && defined(__GNUC__)
+#if (defined(__x86_64__) || defined(__aarch64__)) && \
+    UPB_HAS_ATTRIBUTE(preserve_none) && UPB_HAS_ATTRIBUTE(musttail)
 #define UPB_FASTTABLE_SUPPORTED 1
 #else
 #define UPB_FASTTABLE_SUPPORTED 0
@@ -473,7 +460,7 @@ Error, UINTPTR_MAX is undefined
  * for example for testing or benchmarking. */
 #if defined(UPB_ENABLE_FASTTABLE)
 #if !UPB_FASTTABLE_SUPPORTED
-#error fasttable is x86-64/ARM64 only and requires GCC or Clang.
+#error fasttable is x86-64/ARM64 only and requires preserve_none and musttail.
 #endif
 #define UPB_FASTTABLE 1
 /* Define UPB_TRY_ENABLE_FASTTABLE to use fasttable if possible.

ruby/ext/google/protobuf_c/ruby-upb.h

@@ -447,21 +447,8 @@ Error, UINTPTR_MAX is undefined
 #define UPB_ARM64_BTI_DEFAULT 0
 #endif
 
-/* This check is not fully robust: it does not require that we have "musttail"
- * support available. We need tail calls to avoid consuming arbitrary amounts
- * of stack space.
- *
- * GCC/Clang can mostly be trusted to generate tail calls as long as
- * optimization is enabled, but, debug builds will not generate tail calls
- * unless "musttail" is available.
- *
- * We should probably either:
- *   1. require that the compiler supports musttail.
- *   2. add some fallback code for when musttail isn't available (ie. return
- *      instead of tail calling). This is safe and portable, but this comes at
- *      a CPU cost.
- */
-#if (defined(__x86_64__) || defined(__aarch64__)) && defined(__GNUC__)
+#if (defined(__x86_64__) || defined(__aarch64__)) && \
+    UPB_HAS_ATTRIBUTE(preserve_none) && UPB_HAS_ATTRIBUTE(musttail)
 #define UPB_FASTTABLE_SUPPORTED 1
 #else
 #define UPB_FASTTABLE_SUPPORTED 0
@@ -472,7 +459,7 @@ Error, UINTPTR_MAX is undefined
  * for example for testing or benchmarking. */
 #if defined(UPB_ENABLE_FASTTABLE)
 #if !UPB_FASTTABLE_SUPPORTED
-#error fasttable is x86-64/ARM64 only and requires GCC or Clang.
+#error fasttable is x86-64/ARM64 only and requires preserve_none and musttail.
 #endif
 #define UPB_FASTTABLE 1
 /* Define UPB_TRY_ENABLE_FASTTABLE to use fasttable if possible.