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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S < %s -aa-pipeline=basic-aa -passes='require<loops>,jump-threading' | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1"
target triple = "x86_64-unknown-linux-gnu"
@global = external global i8*
define i32 @wibble() {
; CHECK-LABEL: @wibble(
; CHECK-NEXT: bb19:
; CHECK-NEXT: [[TMP20:%.*]] = getelementptr i8, i8* undef, i64 16
; CHECK-NEXT: [[TMP21:%.*]] = load atomic i8*, i8** @global unordered, align 8
; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, i8* [[TMP21]], i64 936
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[TMP:%.*]] = phi i8* [ [[TMP22]], [[BB19:%.*]] ], [ undef, [[BB2:%.*]] ]
; CHECK-NEXT: [[TMP4:%.*]] = phi i8* [ [[TMP21]], [[BB19]] ], [ undef, [[BB2]] ]
; CHECK-NEXT: [[TMP5:%.*]] = bitcast i8* [[TMP]] to i64*
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, i8* [[TMP4]], i64 848
; CHECK-NEXT: [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i8**
; CHECK-NEXT: br label [[BB11:%.*]]
; CHECK: bb11:
; CHECK-NEXT: [[TMP12:%.*]] = load atomic i8*, i8** [[TMP7]] unordered, align 8
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i8* [[TMP12]], null
; CHECK-NEXT: br i1 [[TMP13]], label [[BB17:%.*]], label [[BB16:%.*]]
; CHECK: bb16:
; CHECK-NEXT: store atomic i64 undef, i64* [[TMP5]] unordered, align 8
; CHECK-NEXT: br label [[BB11]]
; CHECK: bb17:
; CHECK-NEXT: ret i32 undef
;
bb:
br label %bb1
bb1: ; preds = %bb
br label %bb18
bb2: ; No predecessors!
br label %bb3
bb3: ; preds = %bb19, %bb2
%tmp = phi i8* [ %tmp22, %bb19 ], [ undef, %bb2 ]
%tmp4 = phi i8* [ %tmp21, %bb19 ], [ undef, %bb2 ]
%tmp5 = bitcast i8* %tmp to i64*
%tmp6 = getelementptr inbounds i8, i8* %tmp4, i64 848
%tmp7 = bitcast i8* %tmp6 to i8**
br label %bb11
bb11: ; preds = %bb16, %bb3
%tmp12 = load atomic i8*, i8** %tmp7 unordered, align 8
%tmp13 = icmp eq i8* %tmp12, null
br i1 %tmp13, label %bb17, label %bb14
bb14: ; preds = %bb11
br label %bb15
bb15: ; preds = %bb14
br label %bb16
bb16: ; preds = %bb15
store atomic i64 undef, i64* %tmp5 unordered, align 8
br label %bb11
bb17: ; preds = %bb11
ret i32 undef
bb18: ; preds = %bb1
br label %bb19
bb19: ; preds = %bb18
%tmp20 = getelementptr i8, i8* undef, i64 16
%tmp21 = load atomic i8*, i8** @global unordered, align 8
%tmp22 = getelementptr inbounds i8, i8* %tmp21, i64 936
br label %bb3
}
define void @zot(i8* align 8 dereferenceable_or_null(16) %arg, i32 %arg1) {
; CHECK-LABEL: @zot(
; CHECK-NEXT: bb:
; CHECK-NEXT: ret void
;
bb:
ret void
}
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