| ; RUN: opt %loadPolly %defaultOpts -polly-codegen %vector-opt -dce -S < %s | FileCheck %s |
| ; RUN: opt %loadPolly -basicaa -polly-codegen -polly-vectorizer=unroll-only -S < %s | FileCheck -check-prefix=UNROLL %s |
| ; RUN: opt %loadPolly %defaultOpts -polly-import-jscop -polly-import-jscop-dir=%S -polly-cloog -analyze < %s | FileCheck -check-prefix=IMPORT %s |
| ; RUN: opt %loadPolly %defaultOpts -polly-import-jscop -polly-import-jscop-dir=%S -polly-codegen < %s -S %vector-opt | FileCheck -check-prefix=CODEGEN %s |
| |
| ;#define N 1024 |
| ;float A[N]; |
| ;float B[N]; |
| ; |
| ;void simple_vec_stride_one(void) { |
| ; int i; |
| ; |
| ; for (i = 0; i < 4; i++) |
| ; B[i] = A[i]; |
| ;} |
| ;int main() |
| ;{ |
| ; simple_vec_stride_one(); |
| ; return A[42]; |
| ;} |
| |
| 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" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @A = common global [1024 x float] zeroinitializer, align 16 |
| @B = common global [1024 x float] zeroinitializer, align 16 |
| |
| define void @simple_vec_stride_one() nounwind { |
| ; <label>:0 |
| br label %1 |
| |
| ; <label>:1 ; preds = %4, %0 |
| %indvar = phi i64 [ %indvar.next, %4 ], [ 0, %0 ] |
| %scevgep = getelementptr [1024 x float]* @B, i64 0, i64 %indvar |
| %scevgep1 = getelementptr [1024 x float]* @A, i64 0, i64 %indvar |
| %exitcond = icmp ne i64 %indvar, 4 |
| br i1 %exitcond, label %2, label %5 |
| |
| ; <label>:2 ; preds = %1 |
| %3 = load float* %scevgep1, align 4 |
| store float %3, float* %scevgep, align 4 |
| br label %4 |
| |
| ; <label>:4 ; preds = %2 |
| %indvar.next = add i64 %indvar, 1 |
| br label %1 |
| |
| ; <label>:5 ; preds = %1 |
| ret void |
| } |
| |
| define i32 @main() nounwind { |
| call void @simple_vec_stride_one() |
| %1 = load float* getelementptr inbounds ([1024 x float]* @A, i64 0, i64 42), align 8 |
| %2 = fptosi float %1 to i32 |
| ret i32 %2 |
| } |
| |
| ; CHECK: [[LOAD1:%[a-zA-Z0-9_]+]] = load <4 x float>* |
| ; CHECK: store <4 x float> [[LOAD1]] |
| |
| ; IMPORT: for (c2=0;c2<=12;c2+=4) { |
| ; IMPORT: Stmt_2(c2/4); |
| ; IMPORT: } |
| |
| ; We do not generate optimal loads for this. |
| ; CODEGEN: <4 x float> |
| |
| ; UNROLL: [[LOAD1:%[a-zA-Z0-9_]+_scalar.*]] = load float* |
| ; UNROLL: [[LOAD2:%[a-zA-Z0-9_]+_scalar.*]] = load float* |
| ; UNROLL: [[LOAD3:%[a-zA-Z0-9_]+_scalar.*]] = load float* |
| ; UNROLL: [[LOAD4:%[a-zA-Z0-9_]+_scalar.*]] = load float* |
| ; UNROLL: store float [[LOAD1]] |
| ; UNROLL: store float [[LOAD2]] |
| ; UNROLL: store float [[LOAD3]] |
| ; UNROLL: store float [[LOAD4]] |