forked from OSchip/llvm-project
89 lines
3.3 KiB
LLVM
89 lines
3.3 KiB
LLVM
; RUN: opt %loadPolly -polly-codegen -S < %s 2>&1 | not FileCheck %s
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;#include <string.h>
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;#include <stdio.h>
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;#define N 1021
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;
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;int main () {
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; int i;
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; int A[N];
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; int red;
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;
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; memset(A, 0, sizeof(int) * N);
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;
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; A[0] = 1;
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; A[1] = 1;
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; red = 0;
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;
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; __sync_synchronize();
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;
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; for (i = 2; i < N; i++) {
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; A[i] = A[i-1] + A[i-2];
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; red += A[i-2];
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; }
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;
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; __sync_synchronize();
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;
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; if (red != 382399368)
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; return 1;
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;}
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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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define i32 @main() nounwind {
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; <label>:0
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%A = alloca [1021 x i32], align 16 ; <[1021 x i32]*> [#uses=6]
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%1 = getelementptr inbounds [1021 x i32], [1021 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
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%2 = bitcast i32* %1 to i8* ; <i8*> [#uses=1]
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call void @llvm.memset.p0i8.i64(i8* %2, i8 0, i64 4084, i32 1, i1 false)
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%3 = getelementptr inbounds [1021 x i32], [1021 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
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%4 = getelementptr inbounds i32, i32* %3, i64 0 ; <i32*> [#uses=1]
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store i32 1, i32* %4
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%5 = getelementptr inbounds [1021 x i32], [1021 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
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%6 = getelementptr inbounds i32, i32* %5, i64 1 ; <i32*> [#uses=1]
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store i32 1, i32* %6
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fence seq_cst
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br label %7
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; <label>:7 ; preds = %14, %0
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%indvar = phi i64 [ %indvar.next, %14 ], [ 0, %0 ] ; <i64> [#uses=5]
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%red.0 = phi i32 [ 0, %0 ], [ %13, %14 ] ; <i32> [#uses=2]
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%scevgep = getelementptr [1021 x i32], [1021 x i32]* %A, i64 0, i64 %indvar ; <i32*> [#uses=2]
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%tmp = add i64 %indvar, 2 ; <i64> [#uses=1]
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%scevgep1 = getelementptr [1021 x i32], [1021 x i32]* %A, i64 0, i64 %tmp ; <i32*> [#uses=1]
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%tmp2 = add i64 %indvar, 1 ; <i64> [#uses=1]
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%scevgep3 = getelementptr [1021 x i32], [1021 x i32]* %A, i64 0, i64 %tmp2 ; <i32*> [#uses=1]
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%exitcond = icmp ne i64 %indvar, 1019 ; <i1> [#uses=1]
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br i1 %exitcond, label %8, label %15
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; <label>:8 ; preds = %7
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%9 = load i32, i32* %scevgep3 ; <i32> [#uses=1]
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%10 = load i32, i32* %scevgep ; <i32> [#uses=1]
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%11 = add nsw i32 %9, %10 ; <i32> [#uses=1]
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store i32 %11, i32* %scevgep1
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%12 = load i32, i32* %scevgep ; <i32> [#uses=1]
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%13 = add nsw i32 %red.0, %12 ; <i32> [#uses=1]
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br label %14
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; <label>:14 ; preds = %8
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%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
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br label %7
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; <label>:15 ; preds = %7
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%red.0.lcssa = phi i32 [ %red.0, %7 ] ; <i32> [#uses=1]
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fence seq_cst
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%16 = icmp ne i32 %red.0.lcssa, 382399368 ; <i1> [#uses=1]
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br i1 %16, label %17, label %18
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; <label>:17 ; preds = %15
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br label %18
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; <label>:18 ; preds = %17, %15
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%.0 = phi i32 [ 1, %17 ], [ 0, %15 ] ; <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: Could not generate independent blocks
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