Imported Upstream version 5.18.0.225

Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5

external/llvm/test/Transforms/SafeStack/X86/escape-gep-invoke.ll

@@ -0,0 +1,34 @@
+; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
+; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
+
+%struct.pair = type { i32, i32 }
+
+@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+
+; Addr-of a struct element passed into an invoke instruction.
+;   (GEP followed by an invoke)
+;  safestack attribute
+; Requires protector.
+define i32 @foo() uwtable safestack personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
+entry:
+  ; CHECK: __safestack_unsafe_stack_ptr
+  %c = alloca %struct.pair, align 4
+  %exn.slot = alloca i8*
+  %ehselector.slot = alloca i32
+  %a = getelementptr inbounds %struct.pair, %struct.pair* %c, i32 0, i32 0
+  store i32 0, i32* %a, align 4
+  %a1 = getelementptr inbounds %struct.pair, %struct.pair* %c, i32 0, i32 0
+  invoke void @_Z3exceptPi(i32* %a1)
+          to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+  ret i32 0
+
+lpad:
+  %0 = landingpad { i8*, i32 }
+          catch i8* null
+  ret i32 0
+}
+
+declare void @_Z3exceptPi(i32*)
+declare i32 @__gxx_personality_v0(...)