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; REQUIRES: asserts
; RUN: opt -mcpu=z13 -S -passes=loop-simplifycfg -enable-loop-simplifycfg-term-folding -verify-memoryssa 2>&1 < %s | FileCheck %s
target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
@global = external dso_local local_unnamed_addr global i8, align 2
@global.1 = external dso_local local_unnamed_addr global i32, align 4
@global.2 = external dso_local local_unnamed_addr global i32, align 4
@global.3 = external dso_local local_unnamed_addr global i16, align 2
@global.4 = external dso_local local_unnamed_addr global i32, align 4
; CHECK-LABEL: @test_01(
define internal fastcc void @test_01() unnamed_addr {
bb:
%tmp = load i32, ptr @global.2, align 4
%tmp1 = icmp eq i32 %tmp, 0
br i1 %tmp1, label %bb3, label %bb2
bb2: ; preds = %bb
br label %bb7
bb3: ; preds = %bb
br label %bb4
bb4: ; preds = %bb6, %bb3
br i1 true, label %bb5, label %bb6
bb5: ; preds = %bb4
store i16 0, ptr @global.3, align 2
br label %bb6
bb6: ; preds = %bb5, %bb4
br label %bb4
bb7: ; preds = %bb7, %bb2
%tmp8 = phi i32 [ 1, %bb7 ], [ 0, %bb2 ]
%tmp9 = icmp eq i32 %tmp8, 0
br i1 %tmp9, label %bb7, label %bb10
bb10: ; preds = %bb7
br label %bb11
bb11: ; preds = %bb13, %bb10
%tmp12 = icmp ult i32 %tmp, 6
br i1 %tmp12, label %bb13, label %bb14
bb13: ; preds = %bb11
store i32 0, ptr @global.1, align 4
br label %bb11
bb14: ; preds = %bb11
ret void
}
@global.5 = external dso_local local_unnamed_addr global i16, align 2
declare dso_local void @spam() local_unnamed_addr
declare dso_local void @blam() local_unnamed_addr
declare dso_local i64 @quux.1() local_unnamed_addr
declare dso_local void @bar() local_unnamed_addr
; CHECK-LABEL: @test_02(
define dso_local void @test_02(i8 signext %arg) local_unnamed_addr {
bb:
br label %bb1
bb1: ; preds = %bb16, %bb
%tmp = phi i8 [ %arg, %bb ], [ %tmp17, %bb16 ]
%tmp2 = load i16, ptr @global.5, align 2
%tmp3 = icmp ugt i16 %tmp2, 56
br i1 %tmp3, label %bb4, label %bb18
bb4: ; preds = %bb1
%tmp5 = tail call i64 @quux.1()
%tmp6 = icmp eq i64 %tmp5, 0
br i1 %tmp6, label %bb13, label %bb7
bb7: ; preds = %bb4
br label %bb8
bb8: ; preds = %bb8, %bb7
%tmp9 = phi i32 [ 26, %bb7 ], [ %tmp10, %bb8 ]
tail call void @bar()
%tmp10 = add nsw i32 %tmp9, -1
%tmp11 = icmp eq i32 %tmp10, 12
br i1 %tmp11, label %bb12, label %bb8
bb12: ; preds = %bb8
br i1 false, label %bb14, label %bb16
bb13: ; preds = %bb4
tail call void @spam()
br label %bb14
bb14: ; preds = %bb13, %bb12
%tmp15 = phi i8 [ -23, %bb12 ], [ %tmp, %bb13 ]
tail call void @blam()
br label %bb16
bb16: ; preds = %bb14, %bb12
%tmp17 = phi i8 [ %tmp15, %bb14 ], [ -23, %bb12 ]
br label %bb1
bb18: ; preds = %bb1
ret void
}
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