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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='loop(indvars),verify' -S < %s | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
target triple = "x86_64-unknown-linux-gnu"
define void @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[VAR:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range [[RNG0:![0-9]+]], !invariant.load !1, !noundef !1
; CHECK-NEXT: [[VAR2:%.*]] = icmp eq i32 [[VAR]], 0
; CHECK-NEXT: br i1 [[VAR2]], label [[BB18:%.*]], label [[BB19:%.*]]
; CHECK: bb3:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[BB19]] ], [ [[INDVARS_IV_NEXT:%.*]], [[BB12:%.*]] ]
; CHECK-NEXT: br i1 true, label [[BB8:%.*]], label [[BB7:%.*]]
; CHECK: bb7:
; CHECK-NEXT: ret void
; CHECK: bb8:
; CHECK-NEXT: [[VAR9:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range [[RNG0]], !invariant.load !1, !noundef !1
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[VAR9]] to i64
; CHECK-NEXT: [[VAR10:%.*]] = icmp ult i64 [[INDVARS_IV]], [[TMP0]]
; CHECK-NEXT: br i1 [[VAR10]], label [[BB12]], label [[BB11:%.*]]
; CHECK: bb11:
; CHECK-NEXT: ret void
; CHECK: bb12:
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[TMP1:%.*]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[BB3:%.*]], label [[BB17:%.*]]
; CHECK: bb17:
; CHECK-NEXT: unreachable
; CHECK: bb18:
; CHECK-NEXT: ret void
; CHECK: bb19:
; CHECK-NEXT: [[TMP1]] = zext i32 [[VAR]] to i64
; CHECK-NEXT: br label [[BB3]]
;
bb:
%var = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range !0, !invariant.load !1, !noundef !1
%var1 = add nsw i32 %var, -1
%var2 = icmp eq i32 %var, 0
br i1 %var2, label %bb18, label %bb19
bb3: ; preds = %bb19, %bb12
%var4 = phi i32 [ %var15, %bb12 ], [ 0, %bb19 ]
%var5 = sub nsw i32 %var1, %var4
%var6 = icmp ult i32 %var5, %var
br i1 %var6, label %bb8, label %bb7
bb7: ; preds = %bb3
ret void
bb8: ; preds = %bb3
%var9 = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range !0, !invariant.load !1, !noundef !1
%var10 = icmp ult i32 %var4, %var9
br i1 %var10, label %bb12, label %bb11
bb11: ; preds = %bb8
ret void
bb12: ; preds = %bb8
%var13 = zext i32 %var4 to i64
%var14 = getelementptr inbounds i32, ptr addrspace(1) poison, i64 %var13
%var15 = add nuw nsw i32 %var4, 1
%var16 = icmp ult i32 %var15, %var
br i1 %var16, label %bb3, label %bb17
bb17: ; preds = %bb12
unreachable
bb18: ; preds = %bb
ret void
bb19: ; preds = %bb
br label %bb3
}
!0 = !{i32 0, i32 2147483646}
!1 = !{}
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