[SYCL] Enable SPV_KHR_bit_instructions for SYCL code (#12754)

SPV_KHR_bit_instructions is required when using
__builtin_bitreverse32(). SYCL code that was compiled without that
extension enabled and would fail when __builtin_bitreverse32() were
present in source.

---------

Co-authored-by: Michael D Toguchi <michael.d.toguchi@intel.com>

clang/lib/Driver/ToolChains/Clang.cpp

@@ -10188,7 +10188,7 @@ void SPIRVTranslator::ConstructJob(Compilation &C, const JobAction &JA,
     std::string DefaultExtArg =
         ",+SPV_EXT_shader_atomic_float_add,+SPV_EXT_shader_atomic_float_min_max"
         ",+SPV_KHR_no_integer_wrap_decoration,+SPV_KHR_float_controls"
-        ",+SPV_KHR_expect_assume,+SPV_KHR_linkonce_odr";
+        ",+SPV_KHR_expect_assume,+SPV_KHR_linkonce_odr,+SPV_KHR_bit_instructions";
     std::string INTELExtArg =
         ",+SPV_INTEL_subgroups,+SPV_INTEL_media_block_io"
         ",+SPV_INTEL_device_side_avc_motion_estimation"

clang/test/Driver/sycl-spirv-ext.c

@@ -27,7 +27,7 @@
 // CHECK-DEFAULT-SAME:,+SPV_EXT_shader_atomic_float_add
 // CHECK-DEFAULT-SAME:,+SPV_EXT_shader_atomic_float_min_max
 // CHECK-DEFAULT-SAME:,+SPV_KHR_no_integer_wrap_decoration,+SPV_KHR_float_controls
-// CHECK-DEFAULT-SAME:,+SPV_KHR_expect_assume,+SPV_KHR_linkonce_odr
+// CHECK-DEFAULT-SAME:,+SPV_KHR_expect_assume,+SPV_KHR_linkonce_odr,+SPV_KHR_bit_instructions
 // CHECK-DEFAULT-SAME:,+SPV_INTEL_subgroups,+SPV_INTEL_media_block_io
 // CHECK-DEFAULT-SAME:,+SPV_INTEL_device_side_avc_motion_estimation
 // CHECK-DEFAULT-SAME:,+SPV_INTEL_fpga_loop_controls
@@ -88,7 +88,7 @@
 // CHECK-CPU-SAME:,+SPV_EXT_shader_atomic_float_add
 // CHECK-CPU-SAME:,+SPV_EXT_shader_atomic_float_min_max
 // CHECK-CPU-SAME:,+SPV_KHR_no_integer_wrap_decoration,+SPV_KHR_float_controls
-// CHECK-CPU-SAME:,+SPV_KHR_expect_assume,+SPV_KHR_linkonce_odr
+// CHECK-CPU-SAME:,+SPV_KHR_expect_assume,+SPV_KHR_linkonce_odr,+SPV_KHR_bit_instructions
 // CHECK-CPU-SAME:,+SPV_INTEL_subgroups,+SPV_INTEL_media_block_io
 // CHECK-CPU-SAME:,+SPV_INTEL_device_side_avc_motion_estimation
 // CHECK-CPU-SAME:,+SPV_INTEL_fpga_loop_controls