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comparison test/CodeGen/AMDGPU/loop-idiom.ll @ 95:afa8332a0e37

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents
children 803732b1fca8
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84:f3e34b893a5f 95:afa8332a0e37
1 ; RUN: opt -basicaa -loop-idiom -S < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=R600 --check-prefix=FUNC %s
2 ; RUN: opt -basicaa -loop-idiom -S < %s -march=amdgcn -mcpu=SI -verify-machineinstrs| FileCheck --check-prefix=SI --check-prefix=FUNC %s
3 ; RUN: opt -basicaa -loop-idiom -S < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs| FileCheck --check-prefix=SI --check-prefix=FUNC %s
4
5
6 ; Make sure loop-idiom doesn't create memcpy or memset. There are no library
7 ; implementations of these for R600.
8
9 ; FUNC: @no_memcpy
10 ; R600-NOT: {{^}}llvm.memcpy
11 ; SI-NOT: {{^}}llvm.memcpy
12 define void @no_memcpy(i8 addrspace(3)* %in, i32 %size) {
13 entry:
14 %dest = alloca i8, i32 32
15 br label %for.body
16
17 for.body:
18 %0 = phi i32 [0, %entry], [%4, %for.body]
19 %1 = getelementptr i8, i8 addrspace(3)* %in, i32 %0
20 %2 = getelementptr i8, i8* %dest, i32 %0
21 %3 = load i8, i8 addrspace(3)* %1
22 store i8 %3, i8* %2
23 %4 = add i32 %0, 1
24 %5 = icmp eq i32 %4, %size
25 br i1 %5, label %for.end, label %for.body
26
27 for.end:
28 ret void
29 }
30
31 ; FUNC: @no_memset
32 ; R600-NOT: {{^}}llvm.memset
33 ; R600-NOT: {{^}}memset_pattern16:
34 ; SI-NOT: {{^}}llvm.memset
35 ; SI-NOT: {{^}}memset_pattern16:
36 define void @no_memset(i32 %size) {
37 entry:
38 %dest = alloca i8, i32 32
39 br label %for.body
40
41 for.body:
42 %0 = phi i32 [0, %entry], [%2, %for.body]
43 %1 = getelementptr i8, i8* %dest, i32 %0
44 store i8 0, i8* %1
45 %2 = add i32 %0, 1
46 %3 = icmp eq i32 %2, %size
47 br i1 %3, label %for.end, label %for.body
48
49 for.end:
50 ret void
51 }