1 ; Make sure a profile that is generated from a function without an exit node
2 ; does not cause an assertion. The profile consists of a non-zero count in a
3 ; basic block and 0 counts in all succcessor blocks. Expect a warning.
5 ; RUN: llvm-profdata merge %S/Inputs/maxcountzero.proftext -o %t.profdata
6 ; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=false -pgo-test-profile-file=%t.profdata -S 2>&1 | FileCheck %s
8 define void @bar(i32 noundef %s) {
10 %cmp = icmp sgt i32 %s, 20
11 br i1 %cmp, label %if.then, label %if.end
14 call void @exit(i32 noundef 1)
21 declare void @exit(i32 noundef)
23 define void @foo(i32 noundef %n) {
25 %sum = alloca i32, align 4
26 store volatile i32 %n, ptr %sum, align 4
27 %sum.0.sum.0. = load volatile i32, ptr %sum, align 4
28 call void @bar(i32 noundef %sum.0.sum.0.)
29 %cmp = icmp slt i32 %n, 10
30 br i1 %cmp, label %if.then, label %if.end
33 %sum.0.sum.0.1 = load volatile i32, ptr %sum, align 4
34 call void @bar(i32 noundef %sum.0.sum.0.1)
41 %sum.0.sum.0.2 = load volatile i32, ptr %sum, align 4
42 call void @bar(i32 noundef %sum.0.sum.0.2)
46 ; CHECK: warning:{{.*}}Profile in foo partially ignored