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llvm-project/polly/test/GPGPU/host-control-flow.ll

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; RUN: opt %loadPolly -polly-codegen-ppcg -disable-output \
; RUN: -polly-acc-dump-code < %s | FileCheck %s -check-prefix=CODE
; RUN: opt %loadPolly -polly-codegen-ppcg -disable-output \
; RUN: -polly-acc-dump-kernel-ir < %s | FileCheck %s -check-prefix=KERNEL-IR
; RUN: opt %loadPolly -polly-codegen-ppcg \
; RUN: -S < %s | FileCheck %s -check-prefix=IR
; void foo(float A[2][100]) {
; for (long t = 0; t < 100; t++)
; for (long i = 1; i < 99; i++)
; A[(t + 1) % 2][i] += A[t % 2][i - 1] + A[t % 2][i] + A[t % 2][i + 1];
; }
; REQUIRES: pollyacc
; CODE: # host
; CODE-NEXT: {
; CODE-NEXT: cudaCheckReturn(cudaMemcpy(dev_MemRef_A, MemRef_A, (2) * (100) * sizeof(float), cudaMemcpyHostToDevice));
; CODE-NEXT: for (int c0 = 0; c0 <= 99; c0 += 1)
; CODE-NEXT: {
; CODE-NEXT: dim3 k0_dimBlock(32);
; CODE-NEXT: dim3 k0_dimGrid(4);
; CODE-NEXT: kernel0 <<<k0_dimGrid, k0_dimBlock>>> (dev_MemRef_A, c0);
; CODE-NEXT: cudaCheckKernel();
; CODE-NEXT: }
; CODE: cudaCheckReturn(cudaMemcpy(MemRef_A, dev_MemRef_A, (2) * (100) * sizeof(float), cudaMemcpyDeviceToHost));
; CODE-NEXT: }
; IR-LABEL: polly.loop_header: ; preds = %polly.loop_header, %polly.loop_preheader
; IR-NEXT: %polly.indvar = phi i64 [ 0, %polly.loop_preheader ], [ %polly.indvar_next, %polly.loop_header ]
; ...
; IR: store i64 %polly.indvar, i64* %polly_launch_0_param_1
; IR-NEXT: [[REGA:%.+]] = getelementptr [4 x i8*], [4 x i8*]* %polly_launch_0_params, i64 0, i64 1
; IR-NEXT: [[REGB:%.+]] = bitcast i64* %polly_launch_0_param_1 to i8*
; IR-NEXT: store i8* [[REGB]], i8** [[REGA]]
; IR: call i8* @polly_getKernel
; ...
; IR: call void @polly_freeKernel
; IR-NEXT: %polly.indvar_next = add nsw i64 %polly.indvar, 1
; IR-NEXT: %polly.loop_cond = icmp sle i64 %polly.indvar_next, 99
; IR-NEXT: br i1 %polly.loop_cond, label %polly.loop_header, label %polly.loop_exit
; KERNEL-IR: define ptx_kernel void @FUNC_foo_SCOP_0_KERNEL_0(i8 addrspace(1)* %MemRef_A, i64 %c0)
; KERNEL-IR-LABEL: entry:
; KERNEL-IR-NEXT: %0 = call i32 @llvm.nvvm.read.ptx.sreg.ctaid.x()
; KERNEL-IR-NEXT: %b0 = zext i32 %0 to i64
; KERNEL-IR-NEXT: %1 = call i32 @llvm.nvvm.read.ptx.sreg.tid.x()
; KERNEL-IR-NEXT: %t0 = zext i32 %1 to i64
; KERNEL-IR-NEXT: br label %polly.cond
; KERNEL-IR-LABEL: polly.cond: ; preds = %entry
; KERNEL-IR-NEXT: %2 = mul nsw i64 32, %b0
; KERNEL-IR-NEXT: %3 = add nsw i64 %2, %t0
; KERNEL-IR-NEXT: %4 = icmp sle i64 %3, 97
; KERNEL-IR-NEXT: br i1 %4, label %polly.then, label %polly.else
; KERNEL-IR-LABEL: polly.merge: ; preds = %polly.else, %polly.stmt.for.body3
; KERNEL-IR-NEXT: ret void
; KERNEL-IR-LABEL: polly.then: ; preds = %polly.cond
; KERNEL-IR-NEXT: %5 = mul nsw i64 32, %b0
; KERNEL-IR-NEXT: %6 = add nsw i64 %5, %t0
; KERNEL-IR-NEXT: br label %polly.stmt.for.body3
; KERNEL-IR-LABEL: polly.stmt.for.body3: ; preds = %polly.then
; KERNEL-IR-NEXT: %polly.access.cast.MemRef_A = bitcast i8 addrspace(1)* %MemRef_A to float addrspace(1)*
; KERNEL-IR-NEXT: %pexp.pdiv_r = urem i64 %c0, 2
; KERNEL-IR-NEXT: %polly.access.mul.MemRef_A = mul nsw i64 %pexp.pdiv_r, 100
; KERNEL-IR-NEXT: %7 = mul nsw i64 32, %b0
; KERNEL-IR-NEXT: %8 = add nsw i64 %7, %t0
; KERNEL-IR-NEXT: %polly.access.add.MemRef_A = add nsw i64 %polly.access.mul.MemRef_A, %8
; KERNEL-IR-NEXT: %polly.access.MemRef_A = getelementptr float, float addrspace(1)* %polly.access.cast.MemRef_A, i64 %polly.access.add.MemRef_A
; KERNEL-IR-NEXT: %tmp_p_scalar_ = load float, float addrspace(1)* %polly.access.MemRef_A, align 4
; KERNEL-IR-NEXT: %polly.access.cast.MemRef_A1 = bitcast i8 addrspace(1)* %MemRef_A to float addrspace(1)*
; KERNEL-IR-NEXT: %pexp.pdiv_r2 = urem i64 %c0, 2
; KERNEL-IR-NEXT: %polly.access.mul.MemRef_A3 = mul nsw i64 %pexp.pdiv_r2, 100
; KERNEL-IR-NEXT: %9 = mul nsw i64 32, %b0
; KERNEL-IR-NEXT: %10 = add nsw i64 %9, %t0
; KERNEL-IR-NEXT: %11 = add nsw i64 %10, 1
; KERNEL-IR-NEXT: %polly.access.add.MemRef_A4 = add nsw i64 %polly.access.mul.MemRef_A3, %11
; KERNEL-IR-NEXT: %polly.access.MemRef_A5 = getelementptr float, float addrspace(1)* %polly.access.cast.MemRef_A1, i64 %polly.access.add.MemRef_A4
; KERNEL-IR-NEXT: %tmp2_p_scalar_ = load float, float addrspace(1)* %polly.access.MemRef_A5, align 4
; KERNEL-IR-NEXT: %p_add = fadd float %tmp_p_scalar_, %tmp2_p_scalar_
; KERNEL-IR-NEXT: %polly.access.cast.MemRef_A6 = bitcast i8 addrspace(1)* %MemRef_A to float addrspace(1)*
; KERNEL-IR-NEXT: %pexp.pdiv_r7 = urem i64 %c0, 2
; KERNEL-IR-NEXT: %polly.access.mul.MemRef_A8 = mul nsw i64 %pexp.pdiv_r7, 100
; KERNEL-IR-NEXT: %12 = mul nsw i64 32, %b0
; KERNEL-IR-NEXT: %13 = add nsw i64 %12, %t0
; KERNEL-IR-NEXT: %14 = add nsw i64 %13, 2
; KERNEL-IR-NEXT: %polly.access.add.MemRef_A9 = add nsw i64 %polly.access.mul.MemRef_A8, %14
; KERNEL-IR-NEXT: %polly.access.MemRef_A10 = getelementptr float, float addrspace(1)* %polly.access.cast.MemRef_A6, i64 %polly.access.add.MemRef_A9
; KERNEL-IR-NEXT: %tmp3_p_scalar_ = load float, float addrspace(1)* %polly.access.MemRef_A10, align 4
; KERNEL-IR-NEXT: %p_add12 = fadd float %p_add, %tmp3_p_scalar_
; KERNEL-IR-NEXT: %polly.access.cast.MemRef_A11 = bitcast i8 addrspace(1)* %MemRef_A to float addrspace(1)*
; KERNEL-IR-NEXT: %15 = add nsw i64 %c0, 1
; KERNEL-IR-NEXT: %pexp.pdiv_r12 = urem i64 %15, 2
; KERNEL-IR-NEXT: %polly.access.mul.MemRef_A13 = mul nsw i64 %pexp.pdiv_r12, 100
; KERNEL-IR-NEXT: %16 = mul nsw i64 32, %b0
; KERNEL-IR-NEXT: %17 = add nsw i64 %16, %t0
; KERNEL-IR-NEXT: %18 = add nsw i64 %17, 1
; KERNEL-IR-NEXT: %polly.access.add.MemRef_A14 = add nsw i64 %polly.access.mul.MemRef_A13, %18
; KERNEL-IR-NEXT: %polly.access.MemRef_A15 = getelementptr float, float addrspace(1)* %polly.access.cast.MemRef_A11, i64 %polly.access.add.MemRef_A14
; KERNEL-IR-NEXT: %tmp4_p_scalar_ = load float, float addrspace(1)* %polly.access.MemRef_A15, align 4
; KERNEL-IR-NEXT: %p_add17 = fadd float %tmp4_p_scalar_, %p_add12
; KERNEL-IR-NEXT: %polly.access.cast.MemRef_A16 = bitcast i8 addrspace(1)* %MemRef_A to float addrspace(1)*
; KERNEL-IR-NEXT: %19 = add nsw i64 %c0, 1
; KERNEL-IR-NEXT: %pexp.pdiv_r17 = urem i64 %19, 2
; KERNEL-IR-NEXT: %polly.access.mul.MemRef_A18 = mul nsw i64 %pexp.pdiv_r17, 100
; KERNEL-IR-NEXT: %20 = mul nsw i64 32, %b0
; KERNEL-IR-NEXT: %21 = add nsw i64 %20, %t0
; KERNEL-IR-NEXT: %22 = add nsw i64 %21, 1
; KERNEL-IR-NEXT: %polly.access.add.MemRef_A19 = add nsw i64 %polly.access.mul.MemRef_A18, %22
; KERNEL-IR-NEXT: %polly.access.MemRef_A20 = getelementptr float, float addrspace(1)* %polly.access.cast.MemRef_A16, i64 %polly.access.add.MemRef_A19
; KERNEL-IR-NEXT: store float %p_add17, float addrspace(1)* %polly.access.MemRef_A20, align 4
; KERNEL-IR-NEXT: br label %polly.merge
; KERNEL-IR-LABEL: polly.else: ; preds = %polly.cond
; KERNEL-IR-NEXT: br label %polly.merge
; KERNEL-IR-NEXT: }
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo([100 x float]* %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc18, %entry
%t.0 = phi i64 [ 0, %entry ], [ %inc19, %for.inc18 ]
%exitcond1 = icmp ne i64 %t.0, 100
br i1 %exitcond1, label %for.body, label %for.end20
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc, %for.body
%i.0 = phi i64 [ 1, %for.body ], [ %inc, %for.inc ]
%exitcond = icmp ne i64 %i.0, 99
br i1 %exitcond, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
%sub = add nsw i64 %i.0, -1
%rem = srem i64 %t.0, 2
%arrayidx4 = getelementptr inbounds [100 x float], [100 x float]* %A, i64 %rem, i64 %sub
%tmp = load float, float* %arrayidx4, align 4
%rem5 = srem i64 %t.0, 2
%arrayidx7 = getelementptr inbounds [100 x float], [100 x float]* %A, i64 %rem5, i64 %i.0
%tmp2 = load float, float* %arrayidx7, align 4
%add = fadd float %tmp, %tmp2
%add8 = add nuw nsw i64 %i.0, 1
%rem9 = srem i64 %t.0, 2
%arrayidx11 = getelementptr inbounds [100 x float], [100 x float]* %A, i64 %rem9, i64 %add8
%tmp3 = load float, float* %arrayidx11, align 4
%add12 = fadd float %add, %tmp3
%add13 = add nuw nsw i64 %t.0, 1
%rem14 = srem i64 %add13, 2
%arrayidx16 = getelementptr inbounds [100 x float], [100 x float]* %A, i64 %rem14, i64 %i.0
%tmp4 = load float, float* %arrayidx16, align 4
%add17 = fadd float %tmp4, %add12
store float %add17, float* %arrayidx16, align 4
br label %for.inc
for.inc: ; preds = %for.body3
%inc = add nuw nsw i64 %i.0, 1
br label %for.cond1
for.end: ; preds = %for.cond1
br label %for.inc18
for.inc18: ; preds = %for.end
%inc19 = add nuw nsw i64 %t.0, 1
br label %for.cond
for.end20: ; preds = %for.cond
ret void
}
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