| ; RUN: opt < %s -passes=globalopt -S | FileCheck %s |
| |
| target 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" |
| |
| ;; Heap SROA has been removed. This tests we don't perform heap SROA. |
| ; CHECK: @X = |
| %struct.foo = type { i32, i32 } |
| @X = internal global %struct.foo* null ; <%struct.foo**> [#uses=2] |
| |
| define void @bar(i32 %Size) nounwind noinline { |
| entry: |
| %malloccall = tail call i8* @malloc(i64 8000000) ; <i8*> [#uses=1] |
| %tmp = bitcast i8* %malloccall to [1000000 x %struct.foo]* ; <[1000000 x %struct.foo]*> [#uses=1] |
| %.sub = getelementptr [1000000 x %struct.foo], [1000000 x %struct.foo]* %tmp, i32 0, i32 0 ; <%struct.foo*> [#uses=1] |
| store %struct.foo* %.sub, %struct.foo** @X, align 4 |
| ret void |
| } |
| |
| declare noalias i8* @malloc(i64) |
| |
| define i32 @baz() nounwind readonly noinline { |
| bb1.thread: |
| %tmpLD1 = load %struct.foo*, %struct.foo** @X, align 4 ; <%struct.foo*> [#uses=1] |
| br label %bb1 |
| |
| bb1: ; preds = %bb1, %bb1.thread |
| %tmp = phi %struct.foo* [%tmpLD1, %bb1.thread ], [ %tmpLD2, %bb1 ] ; <i32> [#uses=2] |
| %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2] |
| %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %tmp3, %bb1 ] ; <i32> [#uses=1] |
| %tmp1 = getelementptr %struct.foo, %struct.foo* %tmp, i32 %i.0.reg2mem.0, i32 0 ; <i32*> [#uses=1] |
| %tmp2 = load i32, i32* %tmp1, align 4 ; <i32> [#uses=1] |
| %tmp6 = add i32 %tmp2, %sum.0.reg2mem.0 ; <i32> [#uses=2] |
| %tmp4 = getelementptr %struct.foo, %struct.foo* %tmp, i32 %i.0.reg2mem.0, i32 1 ; <i32*> [#uses=1] |
| %tmp5 = load i32 , i32 * %tmp4 |
| %tmp3 = add i32 %tmp5, %tmp6 |
| %indvar.next = add i32 %i.0.reg2mem.0, 1 ; <i32> [#uses=2] |
| |
| %tmpLD2 = load %struct.foo*, %struct.foo** @X, align 4 ; <%struct.foo*> [#uses=1] |
| |
| %exitcond = icmp eq i32 %indvar.next, 1200 ; <i1> [#uses=1] |
| br i1 %exitcond, label %bb2, label %bb1 |
| |
| bb2: ; preds = %bb1 |
| ret i32 %tmp3 |
| } |
| |
| define void @bam(i64 %Size) nounwind noinline #0 { |
| entry: |
| %0 = load %struct.foo*, %struct.foo** @X, align 4 |
| ret void |
| } |
| |
| attributes #0 = { null_pointer_is_valid } |