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authorAndrew Hsieh <andrewhsieh@google.com>2014-06-18 13:00:04 -0700
committerPavel Chupin <pavel.v.chupin@intel.com>2014-06-19 22:38:42 +0400
commitf190d6284359da8ae8694b2d2e14b01602a959ed (patch)
treed4e0548e7cec02d60b1082368032e66a1c509a02 /gcc-4.8/gcc/ira.c
parent4ff2f42147bc128ce38789071d98e55844cd3a5e (diff)
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Merge GCC 4.8.3
Change-Id: I0abe59f7705b3eccc6b2f123af75b2e30917696a
Diffstat (limited to 'gcc-4.8/gcc/ira.c')
-rw-r--r--gcc-4.8/gcc/ira.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/ira.c b/gcc-4.8/gcc/ira.c
index 9e16465e4..87e72f067 100644
--- a/gcc-4.8/gcc/ira.c
+++ b/gcc-4.8/gcc/ira.c
@@ -4742,6 +4742,18 @@ do_reload (void)
if (need_dce && optimize)
run_fast_dce ();
+ /* Diagnose uses of the hard frame pointer when it is used as a global
+ register. Often we can get away with letting the user appropriate
+ the frame pointer, but we should let them know when code generation
+ makes that impossible. */
+ if (global_regs[HARD_FRAME_POINTER_REGNUM] && frame_pointer_needed)
+ {
+ tree decl = global_regs_decl[HARD_FRAME_POINTER_REGNUM];
+ error_at (DECL_SOURCE_LOCATION (current_function_decl),
+ "frame pointer required, but reserved");
+ inform (DECL_SOURCE_LOCATION (decl), "for %qD", decl);
+ }
+
timevar_pop (TV_IRA);
}