Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/CodeGen/ARM/2010-05-18-LocalAllocCrash.ll

@@ -0,0 +1,36 @@
+; RUN: llc < %s -O0 -verify-machineinstrs -regalloc=fast
+; rdar://problem/7948106
+;; This test would spill %R4 before the call to zz, but it forgot to move the
+; 'last use' marker to the spill.
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:64-n32"
+target triple = "armv6-apple-darwin"
+
+%struct.q = type { i32, i32 }
+
+@.str = external constant [1 x i8]                ; <[1 x i8]*> [#uses=1]
+
+define void @yy(%struct.q* %qq) nounwind {
+entry:
+  %vla6 = alloca i8, i32 undef, align 1           ; <i8*> [#uses=1]
+  %vla10 = alloca i8, i32 undef, align 1          ; <i8*> [#uses=1]
+  %vla14 = alloca i8, i32 undef, align 1          ; <i8*> [#uses=1]
+  %vla18 = alloca i8, i32 undef, align 1          ; <i8*> [#uses=1]
+  %tmp21 = load i32, i32* undef                        ; <i32> [#uses=1]
+  %0 = mul i32 1, %tmp21                          ; <i32> [#uses=1]
+  %vla22 = alloca i8, i32 %0, align 1             ; <i8*> [#uses=1]
+  call  void (...) @zz(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i32 0, i32 0), i32 2, i32 1)
+  br i1 undef, label %if.then, label %if.end36
+
+if.then:                                          ; preds = %entry
+  %call = call  i32 (...) @x(%struct.q* undef, i8* undef, i8* %vla6, i8* %vla10, i32 undef) ; <i32> [#uses=0]
+  %call35 = call  i32 (...) @x(%struct.q* undef, i8* %vla14, i8* %vla18, i8* %vla22, i32 undef) ; <i32> [#uses=0]
+  unreachable
+
+if.end36:                                         ; preds = %entry
+  ret void
+}
+
+declare void @zz(...)
+
+declare i32 @x(...)