Build cxxsupp/builtins on armv7a and i686

Also: add cxxsupp/builtins to autocheck/common_targets.inc
commit_hash:e50ebb7511ed61fb1000e84b2caca0634e65a338

2 files changed, 65 insertions, 31 deletions

diff --git a/contrib/libs/cxxsupp/builtins/.yandex_meta/build.ym b/contrib/libs/cxxsupp/builtins/.yandex_meta/build.ym
index ac76bc2e97..55fe016a3e 100644
--- a/contrib/libs/cxxsupp/builtins/.yandex_meta/build.ym
+++ b/contrib/libs/cxxsupp/builtins/.yandex_meta/build.ym
@@ -93,13 +93,15 @@ other_not_emscripten = frozenset([
     'emutls',
     'enable_execute_stack',
     'eprintf',
-    'truncdfbf2',
-    'truncsfbf2',
 ])
 
 def it_srcs():
     for x in common:
         n = name(x)
+
+        if n.startswith("atomic_") or n.endswith("bf2") or n == "extendbfsf2":
+            # these are handled explicitly below
+            continue
         if n in scrt:
             continue
         if arch != 'x86_64_not_win' and n in x86_not_win:
@@ -120,18 +122,51 @@ EOF
 
 ls *.c > common
 
+cat << EOF
+IF (OS_DARWIN OR OS_IOS)
+    SRCS(
+        atomic_flag_clear.c
+        atomic_flag_clear_explicit.c
+        atomic_flag_test_and_set.c
+        atomic_flag_test_and_set_explicit.c
+        atomic_signal_fence.c
+        atomic_thread_fence.c
+    )
+ENDIF()
+
+IF (ARCH_ARM64 OR ARCH_X86_64)
+    # As of r25b, clang-for-android does not have bf16 support.
+    # These can be built using r27 and above.
+    IF (NOT OS_ANDROID)
+        SRCS(
+            # NB: sources that were commented out were added in llvm-20
+            extendbfsf2.c
+            truncdfbf2.c
+            # truncxfbf2.c
+            truncsfbf2.c
+            # trunctfbf2.c
+        )
+    ENDIF()
+ENDIF()
+EOF
+
 echo 'IF (ARCH_AARCH64)'
 echo 'SRCS('
 ls aarch64/*.c cpu_model/aarch64.*c aarch64/*.S > special
 python3 join.py common special aarch
 echo ')'
+
 echo 'IF(NOT OS_DARWIN) SRCS(aarch64/sme-libc-routines.c) ENDIF()'
 echo 'ELSEIF (ARCH_X86_64)'
 echo 'SRCS('
 ls x86_64/*.c cpu_model/x86.*c  x86_64/*.S > special
 python3 join.py common special x86_64
 echo ')'
-echo 'IF(NOT OS_WINDOWS) SRCS(x86_64/floatdixf.c'
+
+# As llvm/compiler-rt/lib/builtins says:
+# Implement extended-precision builtins, assuming long double is 80 bits.
+# long double is not 80 bits on Android or MSVC.
+echo 'IF(NOT OS_WINDOWS AND NOT OS_ANDROID) SRCS(x86_64/floatdixf.c'
 echo '' > special
 python3 join.py common special x86_64_not_win
 echo ') ENDIF()'
diff --git a/contrib/libs/cxxsupp/builtins/ya.make b/contrib/libs/cxxsupp/builtins/ya.make
index b6d7a872ab..46976f6b35 100644
--- a/contrib/libs/cxxsupp/builtins/ya.make
+++ b/contrib/libs/cxxsupp/builtins/ya.make
@@ -60,6 +60,32 @@ IF (GCC OR CLANG)
     NO_LTO()
 ENDIF()
 
+IF (OS_DARWIN OR OS_IOS)
+    SRCS(
+        atomic_flag_clear.c
+        atomic_flag_clear_explicit.c
+        atomic_flag_test_and_set.c
+        atomic_flag_test_and_set_explicit.c
+        atomic_signal_fence.c
+        atomic_thread_fence.c
+    )
+ENDIF()
+
+IF (ARCH_ARM64 OR ARCH_X86_64)
+    # As of r25b, clang-for-android does not have bf16 support.
+    # These can be built using r27 and above.
+    IF (NOT OS_ANDROID)
+        SRCS(
+            # NB: sources that were commented out were added in llvm-20
+            extendbfsf2.c
+            truncdfbf2.c
+            # truncxfbf2.c
+            truncsfbf2.c
+            # trunctfbf2.c
+        )
+    ENDIF()
+ENDIF()
+
 IF (ARCH_AARCH64)
     SRCS(
         aarch64/chkstk.S
@@ -83,12 +109,6 @@ IF (ARCH_AARCH64)
         ashrdi3.c
         ashrti3.c
         atomic.c
-        atomic_flag_clear.c
-        atomic_flag_clear_explicit.c
-        atomic_flag_test_and_set.c
-        atomic_flag_test_and_set_explicit.c
-        atomic_signal_fence.c
-        atomic_thread_fence.c
         bswapdi2.c
         bswapsi2.c
         clear_cache.c
@@ -119,7 +139,6 @@ IF (ARCH_AARCH64)
         emutls.c
         enable_execute_stack.c
         eprintf.c
-        extendbfsf2.c
         extenddftf2.c
         extendhfsf2.c
         extendhftf2.c
@@ -209,10 +228,8 @@ IF (ARCH_AARCH64)
         subvsi3.c
         subvti3.c
         trampoline_setup.c
-        truncdfbf2.c
         truncdfhf2.c
         truncdfsf2.c
-        truncsfbf2.c
         truncsfhf2.c
         trunctfdf2.c
         trunctfhf2.c
@@ -251,12 +268,6 @@ ELSEIF (ARCH_X86_64)
         ashrdi3.c
         ashrti3.c
         atomic.c
-        atomic_flag_clear.c
-        atomic_flag_clear_explicit.c
-        atomic_flag_test_and_set.c
-        atomic_flag_test_and_set_explicit.c
-        atomic_signal_fence.c
-        atomic_thread_fence.c
         bswapdi2.c
         bswapsi2.c
         clear_cache.c
@@ -287,7 +298,6 @@ ELSEIF (ARCH_X86_64)
         emutls.c
         enable_execute_stack.c
         eprintf.c
-        extendbfsf2.c
         extenddftf2.c
         extendhfsf2.c
         extendhftf2.c
@@ -374,10 +384,8 @@ ELSEIF (ARCH_X86_64)
         subvsi3.c
         subvti3.c
         trampoline_setup.c
-        truncdfbf2.c
         truncdfhf2.c
         truncdfsf2.c
-        truncsfbf2.c
         truncsfhf2.c
         trunctfdf2.c
         trunctfhf2.c
@@ -400,7 +408,7 @@ ELSEIF (ARCH_X86_64)
         x86_64/floatundisf.S
         x86_64/floatundixf.S
     )
-    IF (NOT OS_WINDOWS)
+    IF (NOT OS_WINDOWS AND NOT OS_ANDROID)
         SRCS(
             x86_64/floatdixf.c
             divxc3.c
@@ -434,12 +442,6 @@ ELSE()
         ashrdi3.c
         ashrti3.c
         atomic.c
-        atomic_flag_clear.c
-        atomic_flag_clear_explicit.c
-        atomic_flag_test_and_set.c
-        atomic_flag_test_and_set_explicit.c
-        atomic_signal_fence.c
-        atomic_thread_fence.c
         bswapdi2.c
         bswapsi2.c
         clzdi2.c
@@ -465,7 +467,6 @@ ELSE()
         divtc3.c
         divtf3.c
         divti3.c
-        extendbfsf2.c
         extenddftf2.c
         extendhfsf2.c
         extendhftf2.c
@@ -580,8 +581,6 @@ ELSE()
             emutls.c
             enable_execute_stack.c
             eprintf.c
-            truncdfbf2.c
-            truncsfbf2.c
         )
     ENDIF()
 ENDIF()