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