phi_loop_carried_float.ll
2.29 KB
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; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
;
; float f(float *A, int N) {
; float tmp = 0;
; for (int i = 0; i < N; i++)
; tmp += A[i];
; }
; CHECK: Statements {
; CHECK-NEXT: Stmt_bb1
; CHECK-NEXT: Domain :=
; CHECK-NEXT: [N] -> { Stmt_bb1[i0] : 0 <= i0 <= N; Stmt_bb1[0] : N < 0 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: [N] -> { Stmt_bb1[i0] -> [i0, 0] : i0 <= N; Stmt_bb1[0] -> [0, 0] : N < 0 };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: [N] -> { Stmt_bb1[i0] -> MemRef_tmp_0__phi[] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: [N] -> { Stmt_bb1[i0] -> MemRef_tmp_0[] };
; CHECK-NEXT: Stmt_bb4
; CHECK-NEXT: Domain :=
; CHECK-NEXT: [N] -> { Stmt_bb4[i0] : 0 <= i0 < N };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: [N] -> { Stmt_bb4[i0] -> [i0, 1] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: [N] -> { Stmt_bb4[i0] -> MemRef_tmp_0__phi[] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [N] -> { Stmt_bb4[i0] -> MemRef_A[i0] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: [N] -> { Stmt_bb4[i0] -> MemRef_tmp_0[] };
; CHECK-NEXT: }
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(float* %A, i32 %N) {
bb:
%tmp = sext i32 %N to i64
br label %bb1
bb1: ; preds = %bb4, %bb
%indvars.iv = phi i64 [ %indvars.iv.next, %bb4 ], [ 0, %bb ]
%tmp.0 = phi float [ 0.000000e+00, %bb ], [ %tmp7, %bb4 ]
%tmp2 = icmp slt i64 %indvars.iv, %tmp
br i1 %tmp2, label %bb3, label %bb8
bb3: ; preds = %bb1
br label %bb4
bb4: ; preds = %bb3
%tmp5 = getelementptr inbounds float, float* %A, i64 %indvars.iv
%tmp6 = load float, float* %tmp5, align 4
%tmp7 = fadd float %tmp.0, %tmp6
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb1
bb8: ; preds = %bb1
br label %exit
exit:
ret void
}