[m-rev.] diff: fix an rbmm bug
Zoltan Somogyi
zs at csse.unimelb.edu.au
Thu Nov 3 21:10:41 AEDT 2011
Fix a bug in the RBMM system identified by reviewers of the paper.
runtime/mercury_region.h:
Add a slot to commit frames for saving and restoring the ite stack
pointer.
Do the saving and restoring around commits.
compiler/options.m:
Conform to the changes in mercury_region.h.
Zoltan.
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Index: compiler/options.m
===================================================================
RCS file: /home/mercury/mercury1/repository/mercury/compiler/options.m,v
retrieving revision 1.705
diff -u -b -r1.705 options.m
--- compiler/options.m 24 Oct 2011 14:09:23 -0000 1.705
+++ compiler/options.m 3 Nov 2011 09:01:54 -0000
@@ -1401,7 +1401,7 @@
% values or data structures in mercury_region.h.
size_region_ite_fixed - int(4),
size_region_disj_fixed - int(4),
- size_region_commit_fixed - int(4),
+ size_region_commit_fixed - int(5),
size_region_ite_protect - int(1),
size_region_ite_snapshot - int(3),
size_region_semi_disj_protect - int(1),
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Index: runtime/mercury_region.h
===================================================================
RCS file: /home/mercury/mercury1/repository/mercury/runtime/mercury_region.h,v
retrieving revision 1.16
diff -u -b -r1.16 mercury_region.h
--- runtime/mercury_region.h 10 Jul 2009 05:21:57 -0000 1.16
+++ runtime/mercury_region.h 3 Nov 2011 09:06:17 -0000
@@ -41,7 +41,7 @@
*/
#define MR_REGION_ITE_FRAME_FIXED_SIZE 4
#define MR_REGION_DISJ_FRAME_FIXED_SIZE 4
-#define MR_REGION_COMMIT_FRAME_FIXED_SIZE 4
+#define MR_REGION_COMMIT_FRAME_FIXED_SIZE 5
#define MR_REGION_ITE_PROT_SIZE 1
#define MR_REGION_ITE_SNAPSHOT_SIZE 3
#define MR_REGION_SEMI_DISJ_PROT_SIZE 1
@@ -158,6 +158,7 @@
MR_RegionCommitFixedFrame *MR_rcff_previous_commit_frame;
MR_Word MR_rcff_saved_sequence_number;
MR_RegionDisjFixedFrame *MR_rcff_saved_disj_sp;
+ MR_RegionITEFixedFrame *MR_rcff_saved_ite_sp;
MR_Word MR_rcff_num_saved_regions;
};
@@ -298,6 +299,7 @@
new_commit_frame->MR_rcff_saved_sequence_number = \
MR_region_sequence_number; \
new_commit_frame->MR_rcff_saved_disj_sp = MR_region_disj_sp;\
+ new_commit_frame->MR_rcff_saved_ite_sp = MR_region_ite_sp; \
MR_region_commit_sp = new_commit_frame; \
MR_region_profile_push_commit_frame; \
MR_region_debug_push_commit_frame(new_commit_frame); \
@@ -995,6 +997,9 @@
MR_region_profile_pop_disj_frame(MR_region_disj_sp, \
top_commit_frame->MR_rcff_saved_disj_sp); \
MR_region_disj_sp = top_commit_frame->MR_rcff_saved_disj_sp;\
+ MR_region_profile_pop_ite_frame(MR_region_ite_sp, \
+ top_commit_frame->MR_rcff_saved_ite_sp); \
+ MR_region_ite_sp = top_commit_frame->MR_rcff_saved_ite_sp; \
MR_pop_region_commit_frame(top_commit_frame); \
MR_region_debug_end("use_region_commit_success"); \
} while (0)
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