Revision 138733 has:
if (flag_dwarf2_cfi_asm && dwarf2out_do_frame ())
cpp_define (pfile, "__GCC_HAVE_DWARF2_CFI_ASM");
It doesn't work with PCH:
/export/gnu/import/svn/gcc-test/src/gcc/testsuite/gcc.dg/pch/valid-1b.c:3:
warning: ./valid-1b.h.gch: not used because `__GCC_HAVE_DWARF2_CFI_ASM' not
defined
/export/gnu/import/svn/gcc-test/src/gcc/testsuite/gcc.dg/pch/valid-1b.c:3:
error: valid-1b.h: No such file or directory
/export/gnu/import/svn/gcc-test/src/gcc/testsuite/gcc.dg/pch/valid-1b.c:3:
error: one or more PCH files were found, but they were invalid
--
Summary: [4.4 Regression] Revision 138733 breaks PCH
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37033
