source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AMDGPU/parallelandifcollapse.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: 1.9 KB
Line 
1; Function Attrs: nounwind
2; RUN: llc -march=r600 -mcpu=redwood -mattr=-promote-alloca < %s | FileCheck %s
3;
4; CFG flattening should use parallel-and mode to generate branch conditions and
5; then merge if-regions with the same bodies.
6;
7; CHECK: AND_INT
8; CHECK-NEXT: AND_INT
9; CHECK-NEXT: OR_INT
10
11; FIXME: For some reason having the allocas here allowed the flatten cfg pass
12; to do its transfomation, however now that we are using local memory for
13; allocas, the transformation isn't happening.
14
15define void @_Z9chk1D_512v() #0 {
16entry:
17  %a0 = alloca i32, align 4
18  %b0 = alloca i32, align 4
19  %c0 = alloca i32, align 4
20  %d0 = alloca i32, align 4
21  %a1 = alloca i32, align 4
22  %b1 = alloca i32, align 4
23  %c1 = alloca i32, align 4
24  %d1 = alloca i32, align 4
25  %data = alloca i32, align 4
26  %0 = load i32, i32* %a0, align 4
27  %1 = load i32, i32* %b0, align 4
28  %cmp = icmp ne i32 %0, %1
29  br i1 %cmp, label %land.lhs.true, label %if.end
30
31land.lhs.true:                                    ; preds = %entry
32  %2 = load i32, i32* %c0, align 4
33  %3 = load i32, i32* %d0, align 4
34  %cmp1 = icmp ne i32 %2, %3
35  br i1 %cmp1, label %if.then, label %if.end
36
37if.then:                                          ; preds = %land.lhs.true
38  store i32 1, i32* %data, align 4
39  br label %if.end
40
41if.end:                                           ; preds = %if.then, %land.lhs.true, %entry
42  %4 = load i32, i32* %a1, align 4
43  %5 = load i32, i32* %b1, align 4
44  %cmp2 = icmp ne i32 %4, %5
45  br i1 %cmp2, label %land.lhs.true3, label %if.end6
46
47land.lhs.true3:                                   ; preds = %if.end
48  %6 = load i32, i32* %c1, align 4
49  %7 = load i32, i32* %d1, align 4
50  %cmp4 = icmp ne i32 %6, %7
51  br i1 %cmp4, label %if.then5, label %if.end6
52
53if.then5:                                         ; preds = %land.lhs.true3
54  store i32 1, i32* %data, align 4
55  br label %if.end6
56
57if.end6:                                          ; preds = %if.then5, %land.lhs.true3, %if.end
58  ret void
59}
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