41 lines
1 KiB
LLVM
41 lines
1 KiB
LLVM
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; RUN: opt < %s -passes=gvn -S | FileCheck %s
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@last = external global [65 x ptr]
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define i32 @NextRootMove(i32 %wtm, i32 %x, i32 %y, i32 %z) {
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entry:
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%A = alloca ptr
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%tmp17618 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4
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store ptr %tmp17618, ptr %A
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; CHECK: entry:
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; CHECK-NEXT: alloca ptr
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; CHECK-NEXT: %tmp17618 = load
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; CHECK-NOT: load
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; CHECK-NOT: phi
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br label %cond_true116
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cond_true116:
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%cmp = icmp eq i32 %x, %y
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br i1 %cmp, label %cond_true128, label %cond_true145
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cond_true128:
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%tmp17625 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4
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store ptr %tmp17625, ptr %A
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%cmp1 = icmp eq i32 %x, %z
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br i1 %cmp1 , label %bb98.backedge, label %return.loopexit
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bb98.backedge:
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br label %cond_true116
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cond_true145:
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%tmp17631 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4
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store ptr %tmp17631, ptr %A
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br i1 false, label %bb98.backedge, label %return.loopexit
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return.loopexit:
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br label %return
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return:
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ret i32 0
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}
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