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
|
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s
; RUN: %if ptxas %{ llc < %s -march=nvptx64 -mcpu=sm_20 | %ptxas-verify %}
target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64"
target triple = "nvptx64-nvidia-cuda"
%class.float3 = type { float, float, float }
; Function Attrs: nounwind
; CHECK-LABEL: some_kernel
define void @some_kernel(ptr nocapture %dst) #0 {
_ZL11compute_vecRK6float3jb.exit:
%ret_vec.sroa.8.i = alloca float, align 4
%0 = tail call i32 @llvm.nvvm.read.ptx.sreg.ctaid.x()
%1 = tail call i32 @llvm.nvvm.read.ptx.sreg.ntid.x()
%2 = mul nsw i32 %1, %0
%3 = tail call i32 @llvm.nvvm.read.ptx.sreg.tid.x()
%4 = add nsw i32 %2, %3
%5 = zext i32 %4 to i64
call void @llvm.lifetime.start.p0(i64 4, ptr %ret_vec.sroa.8.i)
%6 = and i32 %4, 15
%7 = icmp eq i32 %6, 0
%8 = select i1 %7, float 0.000000e+00, float -1.000000e+00
store float %8, ptr %ret_vec.sroa.8.i, align 4
; CHECK: max.f32 %f{{[0-9]+}}, %f{{[0-9]+}}, 0f00000000
%9 = fcmp olt float %8, 0.000000e+00
%ret_vec.sroa.8.i.val = load float, ptr %ret_vec.sroa.8.i, align 4
%10 = select i1 %9, float 0.000000e+00, float %ret_vec.sroa.8.i.val
call void @llvm.lifetime.end.p0(i64 4, ptr %ret_vec.sroa.8.i)
%11 = getelementptr inbounds %class.float3, ptr %dst, i64 %5, i32 0
store float 0.000000e+00, ptr %11, align 4
%12 = getelementptr inbounds %class.float3, ptr %dst, i64 %5, i32 1
store float %10, ptr %12, align 4
%13 = getelementptr inbounds %class.float3, ptr %dst, i64 %5, i32 2
store float 0.000000e+00, ptr %13, align 4
ret void
}
; Function Attrs: nounwind readnone
declare i32 @llvm.nvvm.read.ptx.sreg.ctaid.x() #1
; Function Attrs: nounwind readnone
declare i32 @llvm.nvvm.read.ptx.sreg.ntid.x() #1
; Function Attrs: nounwind readnone
declare i32 @llvm.nvvm.read.ptx.sreg.tid.x() #1
; Function Attrs: nounwind
declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #2
; Function Attrs: nounwind
declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #2
attributes #0 = { nounwind "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "stack-protector-buffer-size"="8" "no-signed-zeros-fp-math"="true" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
attributes #2 = { nounwind }
!nvvm.annotations = !{!0}
!llvm.ident = !{!1}
!0 = !{ptr @some_kernel, !"kernel", i32 1}
!1 = !{!"clang version 3.5.1 (tags/RELEASE_351/final)"}
|
