diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -305,7 +305,7 @@
 endif()
 
 if(OS_NAME MATCHES "Linux")
-  set(ALL_FUZZER_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM64})
+  set(ALL_FUZZER_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM64} ${S390X})
 elseif (OS_NAME MATCHES "Windows")
   set(ALL_FUZZER_SUPPORTED_ARCH ${X86} ${X86_64})
 elseif(OS_NAME MATCHES "Android")
diff --git a/llvm/test/Instrumentation/SanitizerCoverage/inline-8bit-counters.ll b/llvm/test/Instrumentation/SanitizerCoverage/inline-8bit-counters.ll
--- a/llvm/test/Instrumentation/SanitizerCoverage/inline-8bit-counters.ll
+++ b/llvm/test/Instrumentation/SanitizerCoverage/inline-8bit-counters.ll
@@ -12,4 +12,4 @@
 ; CHECK:  store i8 %1, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @__sancov_gen_, i64 0, i64 0), align 1, !nosanitize
   ret void
 }
-; CHECK: call void @__sanitizer_cov_8bit_counters_init(i8* bitcast (i8** @__start___sancov_cntrs to i8*), i8* bitcast (i8** @__stop___sancov_cntrs to i8*))
+; CHECK: call void @__sanitizer_cov_8bit_counters_init(i8* @__start___sancov_cntrs, i8* @__stop___sancov_cntrs)
diff --git a/llvm/test/Instrumentation/SanitizerCoverage/inline-bool-flag.ll b/llvm/test/Instrumentation/SanitizerCoverage/inline-bool-flag.ll
--- a/llvm/test/Instrumentation/SanitizerCoverage/inline-bool-flag.ll
+++ b/llvm/test/Instrumentation/SanitizerCoverage/inline-bool-flag.ll
@@ -20,4 +20,4 @@
 entry:
   ret void
 }
-; CHECK: call void @__sanitizer_cov_bool_flag_init(i1* bitcast (i1** @__start___sancov_bools to i1*), i1* bitcast (i1** @__stop___sancov_bools to i1*))
+; CHECK: call void @__sanitizer_cov_bool_flag_init(i1* @__start___sancov_bools, i1* @__stop___sancov_bools)
diff --git a/llvm/test/Instrumentation/SanitizerCoverage/tracing.ll b/llvm/test/Instrumentation/SanitizerCoverage/tracing.ll
--- a/llvm/test/Instrumentation/SanitizerCoverage/tracing.ll
+++ b/llvm/test/Instrumentation/SanitizerCoverage/tracing.ll
@@ -74,7 +74,7 @@
 ; CHECK_PC_GUARD: call void @longjmp
 ; CHECK_PC_GUARD: unreachable
 
-; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard_init(i32* bitcast (i32** @__start___sancov_guards to i32*), i32* bitcast (i32** @__stop___sancov_guards to i32*))
+; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard_init(i32* @__start___sancov_guards, i32* @__stop___sancov_guards)
 
 ; CHECK_PC_GUARD_DARWIN-LABEL: define void @foo
 ; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard
@@ -82,4 +82,4 @@
 ; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard
 ; CHECK_PC_GUARD_DARWIN-NOT: call void @__sanitizer_cov_trace_pc
 ; CHECK_PC_GUARD_DARWIN: ret void
-; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard_init(i32* bitcast (i32** @"\01section$start$__DATA$__sancov_guards" to i32*), i32* bitcast (i32** @"\01section$end$__DATA$__sancov_guards" to i32*))
+; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard_init(i32* @"\01section$start$__DATA$__sancov_guards", i32* @"\01section$end$__DATA$__sancov_guards")