forked from OSchip/llvm-project
33 lines
828 B
LLVM
33 lines
828 B
LLVM
; RUN: opt -globalopt -S < %s | FileCheck %s
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%sometype = type { i8* }
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@map = internal unnamed_addr global %sometype* null, align 8
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define void @Init() {
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; CHECK-LABEL: @Init(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store i1 true, i1* @map.init, align 1
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; CHECK-NEXT: ret void
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;
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entry:
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%call = tail call noalias nonnull dereferenceable(48) i8* @_Znwm(i64 48)
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store i8* %call, i8** bitcast (%sometype** @map to i8**), align 8
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ret void
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}
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define void @Usage() {
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; CHECK-LABEL: @Usage(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[MAP_INIT_VAL:%.*]] = load i1, i1* @map.init, align 1
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; CHECK-NEXT: [[NOTINIT:%.*]] = xor i1 [[MAP_INIT_VAL]], true
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; CHECK-NEXT: unreachable
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;
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entry:
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%0 = load i8*, i8** bitcast (%sometype** @map to i8**), align 8
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%.not = icmp eq i8* %0, null
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unreachable
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}
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declare i8* @_Znwm(i64)
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