llvm-project/polly/test/CodeGen/simple_vec_stride_one.ll

53 lines
2.0 KiB
LLVM

; RUN: opt %loadPolly %defaultOpts -polly-codegen -enable-polly-vector -dce -S %s | FileCheck %s
; RUN: opt %loadPolly %defaultOpts -polly-import-jscop -polly-import-jscop-dir=`dirname %s` -polly-cloog -analyze %s | FileCheck -check-prefix=IMPORT %s
; RUN: opt %loadPolly %defaultOpts -polly-import-jscop -polly-import-jscop-dir=`dirname %s` -polly-codegen %s -S -enable-polly-vector | FileCheck -check-prefix=CODEGEN %s
; ModuleID = 'simple_vec_stride_one.s'
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: bitcast float* {{.*}} to <4 x float>*
; CHECK: load <4 x float>*
; CHECK: store <4 x float> %_p_vec_full, <4 x float>* %vector_ptr
; 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>