source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AMDGPU/loop-idiom.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 1.5 KB
Line 
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
12define void @no_memcpy(i8 addrspace(3)* %in, i32 %size) {
13entry:
14  %dest = alloca i8, i32 32
15  br label %for.body
16
17for.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
27for.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:
36define void @no_memset(i32 %size) {
37entry:
38  %dest = alloca i8, i32 32
39  br label %for.body
40
41for.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
49for.end:
50  ret void
51}
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