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| ; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
; RUN: opt %loadPolly -polly-codegen -polly-invariant-load-hoisting=true -S < %s | FileCheck %s --check-prefix=CODEGEN
;
; int U;
; int f(int *A) {
; int i = 0, x, y;
; do {
; x = (*(int *)&U);
; y = (int)(*(float *)&U);
; A[i] = x + y;
; } while (i++ < 100);
; return x + y;
; }
;
; CHECK: Invariant Accesses: {
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_do_body[i0] -> MemRef_U[0] };
; CHECK-NEXT: Execution Context: { : }
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_do_body[i0] -> MemRef_U[0] };
; CHECK-NEXT: Execution Context: { : }
; CHECK-NEXT: }
;
; CHECK: Statements {
; CHECK-NEXT: Stmt_do_body
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_do_body[i0] : 0 <= i0 <= 100 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_do_body[i0] -> [i0] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_do_body[i0] -> MemRef_A[i0] };
; CHECK-NEXT: }
;
; CODEGEN: entry:
; CODEGEN-DAG: %U.f.preload.s2a = alloca float
; CODEGEN-DAG: %U.i.preload.s2a = alloca i32
; CODEGEN: br label %polly.split_new_and_old
;
; CODEGEN: polly.preload.begin:
; CODEGEN-DAG: %U.load[[f:[.0-9]*]] = load float, float* bitcast (i32* @U to float*)
; CODEGEN-DAG: store float %U.load[[f]], float* %U.f.preload.s2a
; CODEGEN-DAG: %U.load[[i:[.0-9]*]] = load i32, i32* @U
; CODEGEN-DAG: store i32 %U.load[[i]], i32* %U.i.preload.s2a
;
; CODEGEN: polly.merge_new_and_old:
; CODEGEN-DAG: %U.f.merge = phi float [ %U.f.final_reload, %polly.exiting ], [ %U.f, %do.cond ]
; CODEGEN-DAG: %U.i.merge = phi i32 [ %U.i.final_reload, %polly.exiting ], [ %U.i, %do.cond ]
;
; CODEGEN: polly.loop_exit:
; CODEGEN-DAG: %U.f.final_reload = load float, float* %U.f.preload.s2a
; CODEGEN-DAG: %U.i.final_reload = load i32, i32* %U.i.preload.s2a
;
; CODEGEN: polly.stmt.do.body:
; CODEGEN: %p_add = add nsw i32 %U.load[[i]], %p_conv
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
@U = common global i32 0, align 4
define i32 @f(i32* %A) {
entry:
br label %do.body
do.body: ; preds = %do.cond, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %do.cond ], [ 0, %entry ]
%U.i = load i32, i32* @U, align 4
%U.cast = bitcast i32 *@U to float*
%U.f = load float, float* %U.cast, align 4
%conv = fptosi float %U.f to i32
%add = add nsw i32 %U.i, %conv
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
store i32 %add, i32* %arrayidx, align 4
br label %do.cond
do.cond: ; preds = %do.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp ne i64 %indvars.iv.next, 101
br i1 %exitcond, label %do.body, label %do.end
do.end: ; preds = %do.cond
%conv2 = fptosi float %U.f to i32
%add2 = add nsw i32 %U.i, %conv2
ret i32 %add2
}
|