File: amdgpu-inline-alloca-argument.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (69 lines) | stat: -rw-r--r-- 2,612 bytes parent folder | download | duplicates (2)
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
; RUN: opt -mtriple=amdgcn--amdhsa -S -passes=inline -inline-threshold=0 < %s | FileCheck %s

target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"

define void @use_flat_ptr_arg(ptr nocapture %p) {
entry:
  %tmp1 = load float, ptr %p, align 4
  %div = fdiv float 1.000000e+00, %tmp1
  %add0 = fadd float %div, 1.0
  %add1 = fadd float %add0, 1.0
  %add2 = fadd float %add1, 1.0
  %add3 = fadd float %add2, 1.0
  %add4 = fadd float %add3, 1.0
  %add5 = fadd float %add4, 1.0
  %add6 = fadd float %add5, 1.0
  %add7 = fadd float %add6, 1.0
  %add8 = fadd float %add7, 1.0
  %add9 = fadd float %add8, 1.0
  %add10 = fadd float %add9, 1.0
  store float %add10, ptr %p, align 4
  ret void
}

define void @use_private_ptr_arg(ptr addrspace(5) nocapture %p) {
entry:
  %tmp1 = load float, ptr addrspace(5) %p, align 4
  %div = fdiv float 1.000000e+00, %tmp1
  %add0 = fadd float %div, 1.0
  %add1 = fadd float %add0, 1.0
  %add2 = fadd float %add1, 1.0
  %add3 = fadd float %add2, 1.0
  %add4 = fadd float %add3, 1.0
  %add5 = fadd float %add4, 1.0
  %add6 = fadd float %add5, 1.0
  %add7 = fadd float %add6, 1.0
  %add8 = fadd float %add7, 1.0
  %add9 = fadd float %add8, 1.0
  %add10 = fadd float %add9, 1.0
  store float %add10, ptr addrspace(5) %p, align 4
  ret void
}

; Test that the inline threshold is boosted if called with an
; addrspacecasted' alloca.
; CHECK-LABEL: @test_inliner_flat_ptr(
; CHECK: call i32 @llvm.amdgcn.workitem.id.x()
; CHECK-NOT: call {{[.*]}}@
define amdgpu_kernel void @test_inliner_flat_ptr(ptr addrspace(1) nocapture %a, i32 %n) {
entry:
  %pvt_arr = alloca [64 x float], align 4, addrspace(5)
  %tid = tail call i32 @llvm.amdgcn.workitem.id.x()
  %arrayidx = getelementptr inbounds float, ptr addrspace(1) %a, i32 %tid
  %tmp2 = load float, ptr addrspace(1) %arrayidx, align 4
  %add = add i32 %tid, 1
  %arrayidx2 = getelementptr inbounds float, ptr addrspace(1) %a, i32 %add
  %tmp5 = load float, ptr addrspace(1) %arrayidx2, align 4
  %or = or i32 %tid, %n
  %arrayidx5 = getelementptr inbounds [64 x float], ptr addrspace(5) %pvt_arr, i32 0, i32 %or
  %arrayidx7 = getelementptr inbounds [64 x float], ptr addrspace(5) %pvt_arr, i32 0, i32 %or
  %to.flat = addrspacecast ptr addrspace(5) %arrayidx7 to ptr
  call void @use_private_ptr_arg(ptr addrspace(5) %arrayidx7)
  call void @use_flat_ptr_arg(ptr %to.flat)
  ret void
}

declare i32 @llvm.amdgcn.workitem.id.x() #1

attributes #0 = { noinline }
attributes #1 = { nounwind readnone }