https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83336
--- Comment #6 from David Malcolm <dmalcolm at gcc dot gnu.org> --- Author: dmalcolm Date: Mon Dec 18 19:23:30 2017 New Revision: 255786 URL: https://gcc.gnu.org/viewcvs?rev=255786&root=gcc&view=rev Log: testsuite: add coverage for diagnostics relating to inlining (PR tree-optimization/83336) In theory, the diagnostics subsystem can print context information on code inlining when diagnostics are emitted by the middle-end, describing the chain of inlined callsites that led to a particular warning, but PR tree-optimization/83336 describes various issues with this. An underlying issue is that we have very little automated testing for this code: gcc.dg/tm/pr52141.c has a test, but in general, prune.exp filters out the various "inlined from" lines. The following patch adds test coverage for it for C and C++ via a new testsuite plugin, which emits a warning from the middle-end; the test cases use dg-regexp to verify that the "inlined from" lines are emitted correctly, with the correct function names and source locations. Doing so requires a change to prune.exp: the dg-regexp lines have to be handled *before* the "inlined from" lines are stripped. gcc/testsuite/ChangeLog: PR tree-optimization/83336 * g++.dg/cpp0x/missing-initializer_list-include.C: Update for changes to prune.exp's handling of dg-regexp. * g++.dg/plugin/diagnostic-test-inlining-1.C: New test case. * g++.dg/plugin/plugin.exp (plugin_test_list): Add it, via gcc.dg's plugin/diagnostic_plugin_test_inlining.c. * gcc.dg/plugin/diagnostic-test-inlining-1.c: New test case. * gcc.dg/plugin/diagnostic-test-inlining-2.c: Likewise. * gcc.dg/plugin/diagnostic-test-inlining-3.c: Likewise. * gcc.dg/plugin/diagnostic-test-inlining-4.c: Likewise. * gcc.dg/plugin/diagnostic_plugin_test_inlining.c: New test plugin. * gcc.dg/plugin/plugin.exp (plugin_test_list): Add them. * lib/prune.exp (prune_gcc_output): Move call to handle-dg-regexps to before the various text stripping regsup invocations, in particular, to before the stripping of "inlined from". Added: trunk/gcc/testsuite/g++.dg/plugin/diagnostic-test-inlining-1.C trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-1.c trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-2.c trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-3.c trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-4.c trunk/gcc/testsuite/gcc.dg/plugin/diagnostic_plugin_test_inlining.c Modified: trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/cpp0x/missing-initializer_list-include.C trunk/gcc/testsuite/g++.dg/plugin/plugin.exp trunk/gcc/testsuite/gcc.dg/plugin/plugin.exp trunk/gcc/testsuite/lib/prune.exp
