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|
; RUN: opt %loadPolly -S -polly-process-unprofitable -polly-acc-mincompute=0 -polly-target=gpu -polly-codegen-ppcg -polly-acc-codegen-managed-memory < %s | \
; RUN: FileCheck %s
; REQUIRES: pollyacc
;
; #include <cuda_runtime.h>
;
; static const int N = 45;
;
; void copy(int *R, int *A) {
; for (int i = 0; i < N; i++) {
; R[i] = A[i] * 10;
; }
; }
;
; int main() {
; int *A, *R;
;
; cudaMallocManaged((void **)(&A), sizeof(int) * N, cudaMemAttachGlobal);
; cudaMallocManaged((void **)(&R), sizeof(int) * N, cudaMemAttachGlobal);
;
; for (int i = 0; i < N; i++) {
; A[i] = i;
; R[i] = 0;
; }
; copy(R, A);
;
; return 0;
; }
;
; CHECK-NOT: polly_copyFromHostToDevice
; CHECK-NOT: polly_copyFromDeviceToHost
; CHECK-NOT: polly_freeDeviceMemory
; CHECK-NOT: polly_allocateMemoryForDevice
; CHECK: %[[REGCTX:[0-9]+]] = call i8* @polly_initContextCUDA()
; CHECK-NEXT: %[[REGCA:[0-9]+]] = bitcast i32* %A to i8*
; CHECK-NEXT: %[[REGCR:[0-9]+]] = bitcast i32* %R to i8*
; CHECK-NEXT: %[[REGGEP0:[0-9]+]] = getelementptr [2 x i8*], [2 x i8*]* %polly_launch_0_params, i64 0, i64 0
; CHECK-NEXT: store i8* %[[REGCA]], i8** %polly_launch_0_param_0
; CHECK-NEXT: %[[REGCP0:[0-9]+]] = bitcast i8** %polly_launch_0_param_0 to i8*
; CHECK-NEXT: store i8* %[[REGCP0]], i8** %[[REGGEP0]]
; CHECK-NEXT: %[[REGGEP1:[0-9]+]] = getelementptr [2 x i8*], [2 x i8*]* %polly_launch_0_params, i64 0, i64 1
; CHECK-NEXT: store i8* %[[REGCR]], i8** %polly_launch_0_param_1
; CHECK-NEXT: %[[REGCP1:[0-9]+]] = bitcast i8** %polly_launch_0_param_1 to i8*
; CHECK-NEXT: store i8* %[[REGCP1]], i8** %[[REGGEP1]]
; CHECK-NEXT: %[[REGKERNEL:[0-9]+]] = call i8* @polly_getKernel(i8* getelementptr inbounds ([851 x i8], [851 x i8]* @FUNC_copy_SCOP_0_KERNEL_0, i32 0, i32 0), i8* getelementptr inbounds ([26 x i8], [26 x i8]* @FUNC_copy_SCOP_0_KERNEL_0_name, i32 0, i32 0))
; CHECK-NEXT: call void @polly_launchKernel(i8* %[[REGKERNEL]], i32 2, i32 1, i32 32, i32 1, i32 1, i8* %polly_launch_0_params_i8ptr)
; CHECK-NEXT: call void @polly_freeKernel(i8* %[[REGKERNEL]])
; CHECK-NEXT: call void @polly_synchronizeDevice()
; CHECK-NEXT: call void @polly_freeContext(i8* %[[REGCTX]])
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @copy(i32* %R, i32* %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%exitcond = icmp ne i64 %indvars.iv, 45
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp = load i32, i32* %arrayidx, align 4
%mul = mul nsw i32 %tmp, 10
%arrayidx2 = getelementptr inbounds i32, i32* %R, i64 %indvars.iv
store i32 %mul, i32* %arrayidx2, align 4
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
define i32 @main() {
entry:
%A = alloca i32*, align 8
%R = alloca i32*, align 8
%tmp = bitcast i32** %A to i8**
%call = call i32 @cudaMallocManaged(i8** nonnull %tmp, i64 180, i32 1) #2
%tmp1 = bitcast i32** %R to i8**
%call1 = call i32 @cudaMallocManaged(i8** nonnull %tmp1, i64 180, i32 1) #2
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%exitcond = icmp ne i64 %indvars.iv, 45
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp2 = load i32*, i32** %A, align 8
%arrayidx = getelementptr inbounds i32, i32* %tmp2, i64 %indvars.iv
%tmp3 = trunc i64 %indvars.iv to i32
store i32 %tmp3, i32* %arrayidx, align 4
%tmp4 = load i32*, i32** %R, align 8
%arrayidx3 = getelementptr inbounds i32, i32* %tmp4, i64 %indvars.iv
store i32 0, i32* %arrayidx3, align 4
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
%tmp5 = load i32*, i32** %R, align 8
%tmp6 = load i32*, i32** %A, align 8
call void @copy(i32* %tmp5, i32* %tmp6)
ret i32 0
}
declare i32 @cudaMallocManaged(i8**, i64, i32) #1
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