forked from OSchip/llvm-project
71 lines
2.6 KiB
LLVM
71 lines
2.6 KiB
LLVM
; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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@A = common global [1024 x i32] zeroinitializer, align 16 ; <[1024 x i32]*> [#uses=3]
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define void @bar(i64 %n) nounwind {
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bb:
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fence seq_cst
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br label %bb1
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bb1: ; preds = %bb3, %bb
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%i.0 = phi i64 [ 0, %bb ], [ %tmp, %bb3 ] ; <i64> [#uses=3]
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%scevgep = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %i.0 ; <i32*> [#uses=1]
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%exitcond = icmp ne i64 %i.0, %n ; <i1> [#uses=1]
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br i1 %exitcond, label %bb2, label %bb4
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bb2: ; preds = %bb1
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store i32 1, i32* %scevgep
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br label %bb3
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bb3: ; preds = %bb2
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%tmp = add nsw i64 %i.0, 1 ; <i64> [#uses=1]
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br label %bb1
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bb4: ; preds = %bb1
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fence seq_cst
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ret void
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}
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define i32 @main() nounwind {
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bb:
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call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @A to i8*), i8 0, i64 4096, i32 1, i1 false)
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call void @bar(i64 1024)
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br label %bb1
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bb1: ; preds = %bb7, %bb
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%indvar = phi i64 [ %indvar.next, %bb7 ], [ 0, %bb ] ; <i64> [#uses=3]
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%scevgep = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar ; <i32*> [#uses=1]
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%i.0 = trunc i64 %indvar to i32 ; <i32> [#uses=1]
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%tmp = icmp slt i32 %i.0, 1024 ; <i1> [#uses=1]
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br i1 %tmp, label %bb2, label %bb8
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bb2: ; preds = %bb1
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%tmp3 = load i32, i32* %scevgep ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb5, label %bb6
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bb5: ; preds = %bb2
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br label %bb9
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bb6: ; preds = %bb2
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br label %bb7
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bb7: ; preds = %bb6
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%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
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br label %bb1
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bb8: ; preds = %bb1
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br label %bb9
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bb9: ; preds = %bb8, %bb5
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%.0 = phi i32 [ 1, %bb5 ], [ 0, %bb8 ] ; <i32> [#uses=1]
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ret i32 %.0
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}
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
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; CHECK: for (int c0 = 0; c0 < n; c0 += 1)
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; CHECK: Stmt_bb2(c0);
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