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| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-12-13 11:35:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-07 21:06:07 -0700 |
| commit | 81bfe7e9ee03ed476f427d04a2939d1b244f9f6b (patch) | |
| tree | 7392ce8f255da339b2c18ac89d1749c380e0e345 /example.c | |
| parent | b54b3264cc47cc8d8cae91787e8c3c85d3eb7abe (diff) | |
| download | sparse-dev-81bfe7e9ee03ed476f427d04a2939d1b244f9f6b.tar.gz | |
The stack offset is global, not per-bb.
We could make the internal per-bb allocations be
local, though. That would require some more care.
Diffstat (limited to 'example.c')
| -rw-r--r-- | example.c | 11 |
1 files changed, 5 insertions, 6 deletions
@@ -90,6 +90,8 @@ static const char* opcodes[] = { [OP_CONTEXT] = "context", }; +static int last_reg, stack_offset; + struct hardreg { const char *name; struct pseudo_list *contains; @@ -122,7 +124,6 @@ static struct hardreg hardregs[] = { struct bb_state { struct position pos; - unsigned long stack_offset; struct storage_hash_list *inputs; struct storage_hash_list *outputs; struct storage_hash_list *internal; @@ -227,8 +228,8 @@ static const char *show_memop(struct storage *storage) static void alloc_stack(struct bb_state *state, struct storage *storage) { storage->type = REG_STACK; - storage->offset = state->stack_offset; - state->stack_offset += 4; + storage->offset = stack_offset; + stack_offset += 4; } /* @@ -374,8 +375,6 @@ static void add_pseudo_reg(struct bb_state *state, pseudo_t pseudo, struct hardr reg->busy++; } -static int last_reg; - static struct hardreg *preferred_reg(struct bb_state *state, pseudo_t target) { struct storage_hash *dst; @@ -1517,7 +1516,6 @@ static void output_bb(struct basic_block *bb, unsigned long generation) state.inputs = gather_storage(bb, STOR_IN); state.outputs = gather_storage(bb, STOR_OUT); state.internal = NULL; - state.stack_offset = 0; state.cc_opcode = 0; state.cc_target = NULL; @@ -1629,6 +1627,7 @@ static void output(struct entrypoint *ep) unsigned long generation = ++bb_generation; last_reg = -1; + stack_offset = 0; /* Set up initial inter-bb storage links */ set_up_storage(ep); |