clang-13 regression: -Rpass=inline doesn't display anything on a simple test case

[sylvestre]

Bugzilla Link	52060
Version	trunk
OS	Linux
Blocks	#50580 #51489
CC	@zygoloid,@tstellar

Extended Description

$ export VERSION=12
$ echo "
int foo(int x, int y) attribute((always_inline));
int foo(int x, int y) { return x + y; }
int bar(int j) { return foo(j, j - 2); }" > foo.cc

$ clang-$VERSION -O2 -Rpass=inline foo.cc -c
foo.cc:4:25: remark: _Z3fooii inlined into _Z3bari with (cost=always): always inline attribute at callsite bar:0:25; [-Rpass=inline]
int bar(int j) { return foo(j, j - 2); }

$ export VERSION=13
$ echo "
int foo(int x, int y) attribute((always_inline));
int foo(int x, int y) { return x + y; }
int bar(int j) { return foo(j, j - 2); }" > foo.cc

$ clang-$VERSION -O2 -Rpass=inline foo.cc -c

=> Empty

[sylvestre]

Adding a main function fixed it:

echo "
int foo(int x, int y) attribute((always_inline));
int foo(int x, int y) { return x + y; }
int bar(int j) { return foo(j, j - 2); }
int sum = 0;

int main(int argc, const char *argv[]) {
for (int i = 0; i < 30; i++)
bar(argc);
return sum;
}

" > foo.cc
clang-$VERSION -O2 -Rpass=inline foo.cc -c

[tstellar]

mentioned in issue #51489

[tstellar]

The deadline for requesting fixes for the release has passed. This bug is being removed from the LLVM 13.0.1 release milestone. If you have a fix or think this bug is important enough to block the release, please explain why in a comment and add the bug back to the LLVM 13.0.1 release milestone.

[arsenm]

I see the remark today, old release