1 ; Function Attrs: nounwind
2 ; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
4 ; CFG flattening should use parallel-and mode to generate branch conditions and
5 ; then merge if-regions with the same bodies.
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.
16 define void @_Z9chk1D_512v() #0 {
18 %a0 = alloca i32, align 4
19 %b0 = alloca i32, align 4
20 %c0 = alloca i32, align 4
21 %d0 = alloca i32, align 4
22 %a1 = alloca i32, align 4
23 %b1 = alloca i32, align 4
24 %c1 = alloca i32, align 4
25 %d1 = alloca i32, align 4
26 %data = alloca i32, align 4
27 %0 = load i32* %a0, align 4
28 %1 = load i32* %b0, align 4
29 %cmp = icmp ne i32 %0, %1
30 br i1 %cmp, label %land.lhs.true, label %if.end
32 land.lhs.true: ; preds = %entry
33 %2 = load i32* %c0, align 4
34 %3 = load i32* %d0, align 4
35 %cmp1 = icmp ne i32 %2, %3
36 br i1 %cmp1, label %if.then, label %if.end
38 if.then: ; preds = %land.lhs.true
39 store i32 1, i32* %data, align 4
42 if.end: ; preds = %if.then, %land.lhs.true, %entry
43 %4 = load i32* %a1, align 4
44 %5 = load i32* %b1, align 4
45 %cmp2 = icmp ne i32 %4, %5
46 br i1 %cmp2, label %land.lhs.true3, label %if.end6
48 land.lhs.true3: ; preds = %if.end
49 %6 = load i32* %c1, align 4
50 %7 = load i32* %d1, align 4
51 %cmp4 = icmp ne i32 %6, %7
52 br i1 %cmp4, label %if.then5, label %if.end6
54 if.then5: ; preds = %land.lhs.true3
55 store i32 1, i32* %data, align 4
58 if.end6: ; preds = %if.then5, %land.lhs.true3, %if.end