From 23f39b378852d679e5d24bbc204ec4ca8fefbd8c Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 10 Mar 2010 19:17:10 +0100 Subject: re PR debug/43290 (ICE in dwarf2out_frame_debug_expr) PR debug/43290 * reg-notes.def (REG_CFA_SET_VDRAP): New note. * dwarf2out.c (dwarf2out_frame_debug_expr): Remove rule 20 - setting of fde->vdrap_reg. (dwarf2out_frame_debug): Handle REG_CFA_SET_VDRAP note. (based_loc_descr): Only express drap or vdrap regno based expressions using DW_OP_fbreg when not optimizing. * config/i386/i386.c (ix86_get_drap_rtx): When not optimizing, make the vDRAP = DRAP assignment RTX_FRAME_RELATED_P and add REG_CFA_SET_VDRAP note. PR debug/36728 * gcc.dg/guality/pr36728-1.c: New test. * gcc.dg/guality/pr36728-2.c: New test. From-SVN: r157363 --- gcc/config/i386/i386.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'gcc/config/i386/i386.c') diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 087c30f..5f560c4 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -8382,7 +8382,7 @@ ix86_get_drap_rtx (void) unsigned int regno = find_drap_reg (); rtx drap_vreg; rtx arg_ptr; - rtx seq; + rtx seq, insn; arg_ptr = gen_rtx_REG (Pmode, regno); crtl->drap_reg = arg_ptr; @@ -8391,8 +8391,13 @@ ix86_get_drap_rtx (void) drap_vreg = copy_to_reg (arg_ptr); seq = get_insns (); end_sequence (); - - emit_insn_before (seq, NEXT_INSN (entry_of_function ())); + + insn = emit_insn_before (seq, NEXT_INSN (entry_of_function ())); + if (!optimize) + { + add_reg_note (insn, REG_CFA_SET_VDRAP, drap_vreg); + RTX_FRAME_RELATED_P (insn) = 1; + } return drap_vreg; } else -- cgit v1.1