forked from OSchip/llvm-project
119 lines
3.5 KiB
LLVM
119 lines
3.5 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s --check-prefix=AST
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;
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; void f(int *A, int N) {
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; for (int i = 0; i < N; i++) {
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; switch (i) {
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; case 0:
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; A[i] += 1;
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; break;
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; case 1:
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; A[i] += 2;
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; break;
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; case 2:
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; A[i] += 3;
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; break;
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; case 3:
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; A[i] += 4;
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; break;
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; default:;
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; }
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; }
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; }
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;
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; CHECK: Statements {
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; CHECK: Stmt_sw_bb
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; CHECK: Domain :=
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; CHECK: [N] -> { Stmt_sw_bb[0] : N >= 1 };
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; CHECK: Stmt_sw_bb_1
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; CHECK: Domain :=
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; CHECK: [N] -> { Stmt_sw_bb_1[1] : N >= 2 };
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; CHECK: Stmt_sw_bb_5
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; CHECK: Domain :=
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; CHECK: [N] -> { Stmt_sw_bb_5[2] : N >= 3 };
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; CHECK: Stmt_sw_bb_9
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; CHECK: Domain :=
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; CHECK: [N] -> { Stmt_sw_bb_9[3] : N >= 4 };
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; CHECK: }
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;
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; AST: if (1)
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;
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; AST: if (N >= 1) {
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; AST: Stmt_sw_bb(0);
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; AST: if (N >= 2) {
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; AST: Stmt_sw_bb_1(1);
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; AST: if (N >= 3) {
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; AST: Stmt_sw_bb_5(2);
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; AST: if (N >= 4)
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; AST: Stmt_sw_bb_9(3);
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; AST: }
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; AST: }
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; AST: }
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;
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; AST: else
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; AST: { /* original code */ }
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;
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @f(i32* %A, i32 %N) {
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entry:
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%tmp = sext i32 %N to i64
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
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%cmp = icmp slt i64 %indvars.iv, %tmp
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%tmp1 = trunc i64 %indvars.iv to i32
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switch i32 %tmp1, label %sw.default [
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i32 0, label %sw.bb
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i32 1, label %sw.bb.1
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i32 2, label %sw.bb.5
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i32 3, label %sw.bb.9
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]
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sw.bb: ; preds = %for.body
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp2 = load i32, i32* %arrayidx, align 4
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%add = add nsw i32 %tmp2, 1
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store i32 %add, i32* %arrayidx, align 4
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br label %sw.epilog
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sw.bb.1: ; preds = %for.body
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%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp3 = load i32, i32* %arrayidx3, align 4
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%add4 = add nsw i32 %tmp3, 2
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store i32 %add4, i32* %arrayidx3, align 4
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br label %sw.epilog
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sw.bb.5: ; preds = %for.body
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%arrayidx7 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp4 = load i32, i32* %arrayidx7, align 4
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%add8 = add nsw i32 %tmp4, 3
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store i32 %add8, i32* %arrayidx7, align 4
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br label %sw.epilog
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sw.bb.9: ; preds = %for.body
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%arrayidx11 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp5 = load i32, i32* %arrayidx11, align 4
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%add12 = add nsw i32 %tmp5, 4
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store i32 %add12, i32* %arrayidx11, align 4
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br label %sw.epilog
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sw.default: ; preds = %for.body
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br label %sw.epilog
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sw.epilog: ; preds = %sw.default, %sw.bb.9, %sw.bb.5, %sw.bb.1, %sw.bb
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br label %for.inc
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for.inc: ; preds = %sw.epilog
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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