Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/CodeGen/X86/gcc_except_table_functions.ll

@@ -0,0 +1,54 @@
+; RUN: llc -mtriple x86_64-pc-linux-gnu < %s | FileCheck %s
+
+; This test demonstrates that it is possible to use functions for typeinfo
+; instead of global variables. While __gxx_personality_v0 would never know what
+; to do with them, other EH schemes such as SEH might use them.
+
+declare i32 @__gxx_personality_v0(...)
+declare void @filt0()
+declare void @filt1()
+declare void @_Z1fv()
+declare i32 @llvm.eh.typeid.for(i8*)
+
+define i32 @main() uwtable personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
+entry:
+  invoke void @_Z1fv()
+          to label %try.cont unwind label %lpad
+
+try.cont:
+  ret i32 0
+
+lpad:
+  %0 = landingpad { i8*, i32 }
+          cleanup
+          catch i8* bitcast (void ()* @filt0 to i8*)
+          catch i8* bitcast (void ()* @filt1 to i8*)
+  %sel = extractvalue { i8*, i32 } %0, 1
+  %id0 = call i32 @llvm.eh.typeid.for(i8* bitcast (void ()* @filt0 to i8*))
+  %is_f0 = icmp eq i32 %sel, %id0
+  br i1 %is_f0, label %try.cont, label %check_f1
+
+check_f1:
+  %id1 = call i32 @llvm.eh.typeid.for(i8* bitcast (void ()* @filt1 to i8*))
+  %is_f1 = icmp eq i32 %sel, %id1
+  br i1 %is_f1, label %try.cont, label %eh.resume
+
+eh.resume:
+  resume { i8*, i32 } %0
+}
+
+; CHECK-LABEL: main:
+; CHECK: .cfi_startproc
+; CHECK: .cfi_personality 3, __gxx_personality_v0
+; CHECK: .cfi_lsda 3, .Lexception0
+; CHECK: .cfi_def_cfa_offset 16
+; CHECK: callq _Z1fv
+; CHECK: retq
+; CHECK: cmpl $2, %edx
+; CHECK: je
+; CHECK: cmpl $1, %edx
+; CHECK: je
+; CHECK: callq _Unwind_Resume
+; CHECK: .cfi_endproc
+; CHECK: GCC_except_table0:
+; CHECK: Lexception0: