Files
clang-p2996/polly/test/Isl/CodeGen/reduction.ll
Tobias Grosser f4ee371e60 tests: Drop -polly-detect-unprofitable and -polly-no-early-exit
These flags are now always passed to all tests and need to be disabled if
not needed. Disabling these flags, rather than passing them to almost all
tests, significantly simplfies our RUN: lines.

llvm-svn: 249422
2015-10-06 15:36:44 +00:00

89 lines
3.3 KiB
LLVM

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