forked from OSchip/llvm-project
104 lines
3.6 KiB
LLVM
104 lines
3.6 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
|
|
;
|
|
; Verify the scalar x defined in a non-affine subregion is written as it
|
|
; escapes the region. In this test the two conditionals inside the region
|
|
; are expressed as two PHI nodes with two incoming values each.
|
|
;
|
|
; void f(int *A, int b) {
|
|
; for (int i = 0; i < 1024; i++) {
|
|
; int x = 0;
|
|
; if (A[i]) {
|
|
; if (b > i)
|
|
; x = 0;
|
|
; else if (b < 2 * i)
|
|
; x = i;
|
|
; else
|
|
; x = b;
|
|
; }
|
|
; A[i] = x;
|
|
; }
|
|
; }
|
|
|
|
; CHECK-LABEL: Region: %bb2---%bb21
|
|
;
|
|
; CHECK: Statements {
|
|
; CHECK-NEXT: Stmt_bb3__TO__bb18
|
|
; CHECK-NEXT: Domain :=
|
|
; CHECK-NEXT: { Stmt_bb3__TO__bb18[i0] : 0 <= i0 <= 1023 };
|
|
; CHECK-NEXT: Schedule :=
|
|
; CHECK-NEXT: { Stmt_bb3__TO__bb18[i0] -> [i0, 0] };
|
|
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
|
|
; CHECK-NEXT: { Stmt_bb3__TO__bb18[i0] -> MemRef_A[i0] };
|
|
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
|
|
; CHECK-NEXT: { Stmt_bb3__TO__bb18[i0] -> MemRef_x_2__phi[] };
|
|
; CHECK-NEXT: Stmt_bb18
|
|
; CHECK-NEXT: Domain :=
|
|
; CHECK-NEXT: { Stmt_bb18[i0] : 0 <= i0 <= 1023 };
|
|
; CHECK-NEXT: Schedule :=
|
|
; CHECK-NEXT: { Stmt_bb18[i0] -> [i0, 1] };
|
|
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
|
|
; CHECK-NEXT: { Stmt_bb18[i0] -> MemRef_x_2__phi[] };
|
|
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
|
|
; CHECK-NEXT: { Stmt_bb18[i0] -> MemRef_A[i0] };
|
|
; CHECK-NEXT: }
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
define void @f(i32* %A, i32 %b) {
|
|
bb:
|
|
%tmp = sext i32 %b to i64
|
|
%tmp1 = sext i32 %b to i64
|
|
br label %bb2
|
|
|
|
bb2: ; preds = %bb20, %bb
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %bb20 ], [ 0, %bb ]
|
|
%exitcond = icmp ne i64 %indvars.iv, 1024
|
|
br i1 %exitcond, label %bb3, label %bb21
|
|
|
|
bb3: ; preds = %bb2
|
|
%tmp4 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
|
|
%tmp5 = load i32, i32* %tmp4, align 4
|
|
%tmp6 = icmp eq i32 %tmp5, 0
|
|
br i1 %tmp6, label %bb18, label %bb7
|
|
|
|
bb7: ; preds = %bb3
|
|
%tmp8 = icmp slt i64 %indvars.iv, %tmp
|
|
br i1 %tmp8, label %bb9, label %bb10
|
|
|
|
bb9: ; preds = %bb7
|
|
br label %bb17
|
|
|
|
bb10: ; preds = %bb7
|
|
%tmp11 = shl nsw i64 %indvars.iv, 1
|
|
%tmp12 = icmp sgt i64 %tmp11, %tmp1
|
|
br i1 %tmp12, label %bb13, label %bb15
|
|
|
|
bb13: ; preds = %bb10
|
|
%tmp14 = trunc i64 %indvars.iv to i32
|
|
br label %bb16
|
|
|
|
bb15: ; preds = %bb10
|
|
br label %bb16
|
|
|
|
bb16: ; preds = %bb15, %bb13
|
|
%x.0 = phi i32 [ %tmp14, %bb13 ], [ %b, %bb15 ]
|
|
br label %bb17
|
|
|
|
bb17: ; preds = %bb16, %bb9
|
|
%x.1 = phi i32 [ 0, %bb9 ], [ %x.0, %bb16 ]
|
|
br label %bb18
|
|
|
|
bb18: ; preds = %bb3, %bb17
|
|
%x.2 = phi i32 [ %x.1, %bb17 ], [ 0, %bb3 ]
|
|
%tmp19 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
|
|
store i32 %x.2, i32* %tmp19, align 4
|
|
br label %bb20
|
|
|
|
bb20: ; preds = %bb18
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
br label %bb2
|
|
|
|
bb21: ; preds = %bb2
|
|
ret void
|
|
}
|