Vendor import of compiler-rt release_40 branch r295380:

https://llvm.org/svn/llvm-project/compiler-rt/branches/release_40@295380

lib/builtins/arm/subsf3vfp.S

@@ -21,7 +21,7 @@
 DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)
 #if defined(COMPILER_RT_ARMHF_TARGET)
 	vsub.f32 s0, s0, s1
-#elsee
+#else
 	vmov	s14, r0		// move first param from r0 into float register
 	vmov	s15, r1		// move second param from r1 into float register
 	vsub.f32 s14, s14, s15

lib/sanitizer_common/sanitizer_platform_limits_posix.cc

@@ -23,11 +23,6 @@
 #ifdef _FILE_OFFSET_BITS
 #undef _FILE_OFFSET_BITS
 #endif
-#if SANITIZER_FREEBSD
-#define _WANT_RTENTRY
-#include <sys/param.h>
-#include <sys/socketvar.h>
-#endif
 #include <arpa/inet.h>
 #include <dirent.h>
 #include <errno.h>
@@ -433,6 +428,7 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
   unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
   unsigned struct_input_id_sz = sizeof(struct input_id);
   unsigned struct_mtpos_sz = sizeof(struct mtpos);
+  unsigned struct_rtentry_sz = sizeof(struct rtentry);
   unsigned struct_termio_sz = sizeof(struct termio);
   unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
   unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
@@ -452,7 +448,6 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
   unsigned struct_midi_info_sz = sizeof(struct midi_info);
   unsigned struct_mtget_sz = sizeof(struct mtget);
   unsigned struct_mtop_sz = sizeof(struct mtop);
-  unsigned struct_rtentry_sz = sizeof(struct rtentry);
   unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
   unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
   unsigned struct_synth_info_sz = sizeof(struct synth_info);

test/builtins/Unit/clear_cache_test.c

@@ -18,9 +18,20 @@ void __clear_cache(void* start, void* end)
     if (!FlushInstructionCache(GetCurrentProcess(), start, end-start))
         exit(1);
 }
+
+static uintptr_t get_page_size() {
+    SYSTEM_INFO si;
+    GetSystemInfo(&si);
+    return si.dwPageSize;
+}
 #else
+#include <unistd.h>
 #include <sys/mman.h>
 extern void __clear_cache(void* start, void* end);
+
+static uintptr_t get_page_size() {
+    return sysconf(_SC_PAGE_SIZE);
+}
 #endif
 
 
@@ -56,8 +67,9 @@ unsigned char execution_buffer[128];
 int main()
 {
     // make executable the page containing execution_buffer 
-    char* start = (char*)((uintptr_t)execution_buffer & (-4095));
-    char* end = (char*)((uintptr_t)(&execution_buffer[128+4096]) & (-4095));
+    uintptr_t page_size = get_page_size();
+    char* start = (char*)((uintptr_t)execution_buffer & (-page_size));
+    char* end = (char*)((uintptr_t)(&execution_buffer[128+page_size]) & (-page_size));
 #if defined(_WIN32)
     DWORD dummy_oldProt;
     MEMORY_BASIC_INFORMATION b;

test/builtins/Unit/fixunsdfdi_test.c

@@ -95,9 +95,6 @@ int main()
     if (test__fixunsdfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
         return 1;
 
-    if (test__fixunsdfdi(0x1.p+64, 0xFFFFFFFFFFFFFFFFLL))
-        return 1;
-
 #if !TARGET_LIBGCC
     if (test__fixunsdfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
         return 1;

test/builtins/Unit/fixunssfdi_test.c

@@ -79,8 +79,6 @@ int main()
         return 1;
     if (test__fixunssfdi(0x1.000000p+63F, 0x8000000000000000LL))
         return 1;
-    if (test__fixunssfdi(0x1.000000p+64F, 0xFFFFFFFFFFFFFFFFLL))
-        return 1;
     if (test__fixunssfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
         return 1;
     if (test__fixunssfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))

test/lsan/TestCases/strace_test.cc

@@ -1,4 +1,5 @@
 // Test that lsan reports a proper error when running under strace.
+// REQUIRES: strace
 // RUN: %clangxx_lsan %s -o %t
 // RUN: not strace -o /dev/null %run %t 2>&1 | FileCheck %s
 

test/lsan/lit.common.cfg

@@ -4,6 +4,8 @@
 
 import os
 
+import lit.util
+
 def get_required_attr(config, attr_name):
   attr_value = getattr(config, attr_name, None)
   if attr_value == None:
@@ -29,6 +31,9 @@ else:
   lit_config.fatal("Unknown LSan test mode: %r" % lsan_lit_test_mode)
 config.name += config.name_suffix
 
+if lit.util.which('strace'):
+  config.available_features.add('strace')
+
 clang_cflags = ["-O0", config.target_cflags] + config.debug_info_flags
 clang_cxxflags = config.cxx_mode_flags + clang_cflags
 lsan_incdir = config.test_source_root + "/../"