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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -indvars -opaque-pointers < %s | FileCheck %s
target datalayout = "n8:16:32:64"
@data = common global [240 x i8] zeroinitializer, align 16
; Based on the test from lftr.ll
define void @test_zext(ptr %a) {
; CHECK-LABEL: @test_zext(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[P_0:%.*]] = phi ptr [ getelementptr inbounds ([240 x i8], ptr @data, i64 0, i64 0), [[ENTRY:%.*]] ], [ [[T3:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[DOT0:%.*]] = phi ptr [ [[A:%.*]], [[ENTRY]] ], [ [[T:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[T]] = getelementptr inbounds i8, ptr [[DOT0]], i64 1
; CHECK-NEXT: [[T2:%.*]] = load i8, ptr [[DOT0]], align 1
; CHECK-NEXT: [[T3]] = getelementptr inbounds i8, ptr [[P_0]], i64 1
; CHECK-NEXT: store i8 [[T2]], ptr [[P_0]], align 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne ptr [[P_0]], getelementptr (i8, ptr @data, i64 239)
; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
br label %loop
loop:
%i.0 = phi i8 [ 0, %entry ], [ %t4, %loop ]
%p.0 = phi ptr [ getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), %entry ], [ %t3, %loop ]
%.0 = phi ptr [ %a, %entry ], [ %t, %loop ]
%t = getelementptr inbounds i8, ptr %.0, i64 1
%t2 = load i8, ptr %.0, align 1
%t3 = getelementptr inbounds i8, ptr %p.0, i64 1
store i8 %t2, ptr %p.0, align 1
%t4 = add i8 %i.0, 1
%t5 = icmp ult i8 %t4, -16
br i1 %t5, label %loop, label %exit
exit:
ret void
}
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