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