1; RUN: opt < %s -globalopt -S | FileCheck %s 2target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128" 3 4 %struct.foo = type { i32, i32 } 5@X = internal global %struct.foo* null 6; CHECK: @X.f0 7; CHECK: @X.f1 8 9define void @bar(i64 %Size) nounwind noinline { 10entry: 11 %mallocsize = shl i64 %Size, 3 ; <i64> [#uses=1] 12 %malloccall = tail call i8* @malloc(i64 %mallocsize) ; <i8*> [#uses=1] 13; CHECK: mul i64 %Size, 4 14 %.sub = bitcast i8* %malloccall to %struct.foo* ; <%struct.foo*> [#uses=1] 15 store %struct.foo* %.sub, %struct.foo** @X, align 4 16 ret void 17} 18 19declare noalias i8* @malloc(i64) 20 21define i32 @baz() nounwind readonly noinline { 22bb1.thread: 23 %0 = load %struct.foo*, %struct.foo** @X, align 4 24 br label %bb1 25 26bb1: ; preds = %bb1, %bb1.thread 27 %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] 28 %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %3, %bb1 ] 29 %1 = getelementptr %struct.foo, %struct.foo* %0, i32 %i.0.reg2mem.0, i32 0 30 %2 = load i32, i32* %1, align 4 31 %3 = add i32 %2, %sum.0.reg2mem.0 32 %indvar.next = add i32 %i.0.reg2mem.0, 1 33 %exitcond = icmp eq i32 %indvar.next, 1200 34 br i1 %exitcond, label %bb2, label %bb1 35 36bb2: ; preds = %bb1 37 ret i32 %3 38} 39 40define void @bam(i64 %Size) nounwind noinline #0 { 41entry: 42 %0 = load %struct.foo*, %struct.foo** @X, align 4 43 ret void 44} 45 46attributes #0 = { "null-pointer-is-valid"="true" } 47 48