source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/ARM/ifcvt-branch-weight.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: 1.2 KB
Line 
1; RUN: llc < %s -mtriple=thumbv8 -print-machineinstrs=if-converter -arm-atomic-cfg-tidy=0 -o /dev/null 2>&1 | FileCheck %s
2
3%struct.S = type { i8* (i8*)*, [1 x i8] }
4define internal zeroext i8 @bar(%struct.S* %x, %struct.S* nocapture %y) nounwind readonly {
5entry:
6  %0 = getelementptr inbounds %struct.S, %struct.S* %x, i32 0, i32 1, i32 0
7  %1 = load i8, i8* %0, align 1
8  %2 = zext i8 %1 to i32
9  %3 = and i32 %2, 112
10  %4 = icmp eq i32 %3, 0
11  br i1 %4, label %return, label %bb
12
13bb:
14  %5 = getelementptr inbounds %struct.S, %struct.S* %y, i32 0, i32 1, i32 0
15  %6 = load i8, i8* %5, align 1
16  %7 = zext i8 %6 to i32
17  %8 = and i32 %7, 112
18  %9 = icmp eq i32 %8, 0
19  br i1 %9, label %return, label %bb2
20
21; CHECK: BB#2: derived from LLVM BB %bb2
22; CHECK: Successors according to CFG: BB#3({{[0-9a-fx/= ]+}}50.00%) BB#4({{[0-9a-fx/= ]+}}50.00%)
23
24bb2:
25  %v10 = icmp eq i32 %3, 16
26  br i1 %v10, label %bb4, label %bb3, !prof !0
27
28bb3:
29  %v11 = icmp eq i32 %8, 16
30  br i1 %v11, label %bb4, label %return, !prof !1
31
32bb4:
33  %v12 = ptrtoint %struct.S* %x to i32
34  %phitmp = trunc i32 %v12 to i8
35  ret i8 %phitmp
36
37return:
38  ret i8 1
39}
40
41!0 = !{!"branch_weights", i32 4, i32 12}
42!1 = !{!"branch_weights", i32 8, i32 16}
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