Merge branch 'bjorn/line-numbers-in-exceptions/OTP-9468' into major

* bjorn/line-numbers-in-exceptions/OTP-9468: (51 commits)
  debugger: By default, only save non-tail-recursive calls
  debugger: Add line_number_SUITE
  debugger: Include line numbers in exceptions
  Update examples in the documentation to include line numbers
  Update documentation for erlang:raise/3 and erlang:get_stacktrace/0
  beam_lib: Retain the "Line" chunk when stripping BEAM files
  erl: Add +L to suppress loading of line number information
  compiler: Add no_line_info for suppressing line/1 instructions
  exception_SUITE: Test line numbers in exceptions
  common_test: Use line numbers in exceptions
  common_test tests: Don't do detailed testing of the stack backtrace
  test_server: Refactor init_per_testcase/3 into two functions
  Implement process_info(Pid, current_{location,stacktrace})
  beam_emu: Factor out saving of stack trace from save_stacktrace()
  compiler: Don't create filenames starting with "./"
  ops.tab: Remove line instructions before tail-recursive calls
  Lookup and include filenames and line numbers in exceptions
  Fix decrement of continuation pointers
  Refactor building of the exception stacktrace
  BEAM loader: Load the line table
  ...

1 files changed, 33 insertions, 0 deletions

diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 304ce22ef2..538f0b94af 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -94,6 +94,39 @@ i_global_copy
 
 return
 
+#
+# To ensure that a "move Src x(0)" instruction can be combined
+# with the following call instruction, we need to make sure that
+# there is no line/1 instruction between the move and the call.
+#
+
+move S r | line Loc | call_ext Ar Func => \
+     line Loc | move S r | call_ext Ar Func
+move S r | line Loc | call_ext_last Ar Func=u$is_bif D => \
+     line Loc | move S r | call_ext_last Ar Func D
+move S r | line Loc | call_ext_only Ar Func=u$is_bif => \
+     line Loc | move S r | call_ext_only Ar Func
+move S r | line Loc | call Ar Func => \
+     line Loc | move S r | call Ar Func
+
+#
+# A tail-recursive call to an external function (non-BIF) will
+# never be saved on the stack, so there is no reason to keep
+# the line instruction. (The compiler did not remove the line
+# instruction because it cannot tell the difference between
+# BIFs and ordinary Erlang functions.)
+#
+
+line Loc | call_ext_last Ar Func=u$is_not_bif D => \
+     call_ext_last Ar Func D
+line Loc | call_ext_only Ar Func=u$is_not_bif => \
+     call_ext_only Ar Func
+
+line Loc | func_info M F A => func_info M F A | line Loc
+
+line I
+
+
 %macro: allocate Allocate -pack
 %macro: allocate_zero AllocateZero -pack
 %macro: allocate_heap AllocateHeap -pack