[Builtin] Implement lit-test support

Summary:
This patch implements a initial support of lit test for builtins.
Unit/arm/call_apsr.S is updated to support thumb1.
It also fixes a bug in arm/aeabi_uldivmod_test.c
gcc_personality_test is XFAILED as the framework cannot handle it so far.
cpu_model_test is also XFAILED for now as it is expected to return non-zero.

Reviewers: rengolin, compnerd, jroelofs, erik.pilkington, arphaman

Reviewed By: jroelofs

Subscribers: jroelofs, aemerson, srhines, nemanjai, llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D30802

llvm-svn: 297566

compiler-rt/test/builtins/CMakeLists.txt

@@ -9,6 +9,22 @@ configure_lit_site_cfg(
   ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
 )
 
+#Unit tests.
+set(BUILTINS_TEST_ARCH ${COMPILER_RT_SUPPORTED_ARCH})
+
+foreach(arch ${BUILTINS_TEST_ARCH})
+  set(BUILTINS_TEST_TARGET_ARCH ${arch})
+  string(TOLOWER "-${arch}-${OS_NAME}" BUILTINS_TEST_CONFIG_SUFFIX)
+  get_test_cc_for_arch(${arch} BUILTINS_TEST_TARGET_CC BUILTINS_TEST_TARGET_CFLAGS)
+  string(TOUPPER ${arch} ARCH_UPPER_CASE)
+  set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}Config)
+  configure_lit_site_cfg(
+    ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.site.cfg.in
+    ${CMAKE_CURRENT_BINARY_DIR}/Unit/${CONFIG_NAME}/lit.site.cfg
+    )
+  list(APPEND BUILTINS_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/Unit/${CONFIG_NAME})
+endforeach()
+
 add_lit_testsuite(check-builtins "Running the Builtins tests"
   ${BUILTINS_TESTSUITES}
   DEPENDS ${BUILTINS_TEST_DEPS})

compiler-rt/test/builtins/Unit/absvdi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- absvdi2_test.c - Test __absvdi2 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/absvsi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/absvti2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- absvti2_test.c - Test __absvti2 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/adddf3vfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- adddf3vfp_test.c - Test __adddf3vfp -------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/addsf3vfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- addsf3vfp_test.c - Test __addsf3vfp -------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/addtf3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- addtf3_test.c - Test __addtf3 ------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/addvdi3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- addvdi3_test.c - Test __addvdi3 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/addvsi3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- addvsi3_test.c - Test __addvsi3 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/addvti3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- addvti3_test.c - Test __addvti3 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_cdcmpeq_test.c

@@ -1,3 +1,6 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %arm_call_apsr -o %t.aspr.o
+// RUN: %clang_builtins %s %t.aspr.o %librt -o %t && %run %t
 //===-- aeabi_cdcmpeq.c - Test __aeabi_cdcmpeq ----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_cdcmple_test.c

@@ -1,3 +1,7 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %arm_call_apsr -o %t.aspr.o
+// RUN: %clang_builtins %s  %t.aspr.o %librt -o %t && %run %t
+
 //===-- aeabi_cdcmple.c - Test __aeabi_cdcmple and __aeabi_cdrcmple -------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_cfcmpeq_test.c

@@ -1,3 +1,6 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %arm_call_apsr -o %t.aspr.o
+// RUN: %clang_builtins %s  %t.aspr.o %librt -o %t && %run %t
 //===-- aeabi_cfcmpeq.c - Test __aeabi_cfcmpeq ----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_cfcmple_test.c

@@ -1,3 +1,7 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %arm_call_apsr -o %t.aspr.o
+// RUN: %clang_builtins %s  %t.aspr.o %librt -o %t && %run %t
+
 //===-- aeabi_cfcmple.c - Test __aeabi_cfcmple and __aeabi_cfrcmple -------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_drsub_test.c

@@ -1,3 +1,5 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_drsub.c - Test __aeabi_drsub --------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_frsub_test.c

@@ -1,3 +1,5 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_frsub.c - Test __aeabi_frsub --------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_idivmod_test.c

@@ -1,3 +1,5 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_idivmod_test.c - Test __aeabi_idivmod -----------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_uidivmod_test.c

@@ -1,3 +1,5 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_uidivmod_test.c - Test __aeabi_uidivmod ---------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/aeabi_uldivmod_test.c

@@ -1,3 +1,5 @@
+// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_uldivmod_test.c - Test aeabi_uldivmod -----------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/arm/call_apsr.S

@@ -22,11 +22,11 @@
 // }
 
 DEFINE_COMPILERRT_PRIVATE_FUNCTION(call_apsr_d)
-    push {lr}
-    ldr ip, [sp, #4]
-    blx ip
+    push {r7, lr}
+    ldr r7, [sp, #8]
+    blx r7
     mrs r0, apsr
-    pop {pc}
+    pop {r7, pc}
 END_COMPILERRT_FUNCTION(call_apsr_d)
 
 // __attribute__((pcs("aapcs")))

compiler-rt/test/builtins/Unit/ashldi3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ashldi3_test.c - Test __ashldi3 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/ashlti3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ashlti3_test.c - Test __ashlti3 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/ashrdi3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ashrdi3_test.c - Test __ashrdi3 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/ashrti3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ashrti3_test.c - Test __ashrti3 -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/bswapdi2_test.c

@@ -1,3 +1,5 @@
+// UNSUPPORTED: armv6m-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- bswapdi2_test.c - Test __bswapdi2 ---------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/bswapsi2_test.c

@@ -1,3 +1,5 @@
+// UNSUPPORTED: armv6m-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- bswapsi2_test.c - Test __bswapsi2 ---------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/clear_cache_test.c

@@ -1,3 +1,5 @@
+// REQUIRES: native-run
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- clear_cache_test.c - Test clear_cache -----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/clzdi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- clzdi2_test.c - Test __clzdi2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/clzsi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- clzsi2_test.c - Test __clzsi2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/clzti2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- clzti2_test.c - Test __clzti2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/cmpdi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- cmpdi2_test.c - Test __cmpdi2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/cmpti2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- cmpti2_test.c - Test __cmpti2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/comparedf2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- cmpdf2_test.c - Test __cmpdf2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/comparesf2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- cmpsf2_test.c - Test __cmpsf2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/cpu_model_test.c

@@ -1,4 +1,8 @@
-//===-- cpu_model_test.c - Test __builtin_cpu_supports -------------------------------===//
+// FIXME: XFAIL the test because it is expected to return non-zero value.
+// XFAIL: *
+// REQUIRES: x86-target-arch
+// RUN: %clang_builtins %s %librt -o %t && %run %t
+//===-- cpu_model_test.c - Test __builtin_cpu_supports --------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -11,8 +15,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-// REQUIRES: x86-target-arch
-
 #include <stdio.h>
 
 int main (void) {

compiler-rt/test/builtins/Unit/ctzdi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ctzdi2_test.c - Test __ctzdi2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/ctzsi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ctzsi2_test.c - Test __ctzsi2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/ctzti2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ctzti2_test.c - Test __ctzti2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divdc3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divdc3_test.c - Test __divdc3 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divdf3vfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divdf3vfp_test.c - Test __divdf3vfp -------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divdi3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divdi3_test.c - Test __divdi3 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divmodsi4_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divmodsi4_test.c - Test __divmodsi4 -------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divsc3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -lm -o %t && %run %t
 //===-- divsc3_test.c - Test __divsc3 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divsf3vfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divsf3vfp_test.c - Test __divsf3vfp -------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divsi3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divsi3_test.c - Test __divsi3 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divtc3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -lm -o %t && %run %t
 //===-- divtc3_test.c - Test __divtc3 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divtf3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- divtf3_test.c - Test __divtf3 ------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divti3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divti3_test.c - Test __divti3 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/divxc3_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -lm -o %t && %run %t
 //===-- divxc3_test.c - Test __divxc3 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/enable_execute_stack_test.c

@@ -1,3 +1,5 @@
+// REQUIRES: native-run
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- enable_execute_stack_test.c - Test __enable_execute_stack ----------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/eqdf2vfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- eqdf2vfp_test.c - Test __eqdf2vfp ---------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/eqsf2vfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- eqsf2vfp_test.c - Test __eqsf2vfp ---------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/eqtf2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ eqtf2_test.c - Test __eqtf2------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/extebdsfdf2vfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- extendsfdf2vfp_test.c - Test __extendsfdf2vfp ---------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/extenddftf2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- extenddftf2_test.c - Test __extenddftf2 --------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/extendhfsf2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- extendhfsf2_test.c - Test __extendhfsf2 --------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/extendsftf2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- extendsftf2_test.c - Test __extendsftf2 --------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/ffsdi2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ffsdi2_test.c - Test __ffsdi2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/ffsti2_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ffsti2_test.c - Test __ffsti2 -------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixdfdi_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixdfdi_test.c - Test __fixdfdi -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixdfsivfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixdfsivfp_test.c - Test __fixdfsivfp -----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixdfti_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixdfti_test.c - Test __fixdfti -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixsfdi_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixsfdi_test.c - Test __fixsfdi -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixsfsivfp_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixsfsivfp_test.c - Test __fixsfsivfp -----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixsfti_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixsfti_test.c - Test __fixsfti -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixtfdi_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- fixtfdi_test.c - Test __fixtfdi ----------------------===//
 //
 //                     The LLVM Compiler Infrastructure

compiler-rt/test/builtins/Unit/fixtfsi_test.c

@@ -1,3 +1,4 @@
+// RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- fixtfsi_test.c - Test __fixtfsi ----------------------===//
 //
 //                     The LLVM Compiler Infrastructure