1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
; RUN: opt -opaque-pointers=0 %loadPolly -polly-print-scops -disable-output < %s | FileCheck %s --check-prefix=SCOP
; RUN: opt -opaque-pointers=0 %loadPolly -polly-codegen-ppcg -polly-acc-dump-kernel-ir -disable-output < %s | FileCheck %s --check-prefix=KERNEL-IR
; RUN: opt -opaque-pointers=0 %loadPolly -S -polly-codegen-ppcg < %s | FileCheck %s --check-prefix=HOST-IR
; Test that we do recognise and codegen a kernel that has intrinsics.
; REQUIRES: pollyacc
; Check that we model the kernel as a scop.
; SCOP: Function: f
; SCOP-NEXT: Region: %entry.split---%for.end
; Check that the intrinsic call is present in the kernel IR.
; KERNEL-IR: %p_sqrt = tail call float @llvm.sqrt.f32(float %A.arr.i.val_p_scalar_)
; KERNEL-IR: declare float @llvm.sqrt.f32(float)
; KERNEL-IR: declare float @llvm.fabs.f32(float)
; Check that kernel launch is generated in host IR.
; the declare would not be generated unless a call to a kernel exists.
; HOST-IR: declare void @polly_launchKernel(i8*, i32, i32, i32, i32, i32, i8*)
; void f(float *A, float *B, int N) {
; for(int i = 0; i < N; i++) {
; float tmp0 = A[i];
; float tmp1 = sqrt(tmp1);
; float tmp2 = fabs(tmp2);
; float tmp3 = copysignf(tmp1, tmp2);
; B[i] = tmp4;
; }
; }
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define void @f(float* %A, float* %B, i32 %N) {
entry:
br label %entry.split
entry.split: ; preds = %entry
%cmp1 = icmp sgt i32 %N, 0
br i1 %cmp1, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry.split
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
%A.arr.i = getelementptr inbounds float, float* %A, i64 %indvars.iv
%A.arr.i.val = load float, float* %A.arr.i, align 4
; Call to intrinsics that should be part of the kernel.
%sqrt = tail call float @llvm.sqrt.f32(float %A.arr.i.val)
%fabs = tail call float @llvm.fabs.f32(float %sqrt);
%copysign = tail call float @llvm.copysign.f32(float %sqrt, float %fabs);
%B.arr.i = getelementptr inbounds float, float* %B, i64 %indvars.iv
store float %copysign, float* %B.arr.i, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%wide.trip.count = zext i32 %N to i64
%exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.body, label %for.cond.for.end_crit_edge
for.cond.for.end_crit_edge: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.cond.for.end_crit_edge, %entry.split
ret void
}
; Function Attrs: nounwind readnone
declare float @llvm.sqrt.f32(float) #0
declare float @llvm.fabs.f32(float) #0
declare float @llvm.copysign.f32(float, float) #0
attributes #0 = { nounwind readnone }
|
