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De-duplicate ARM literal pools.

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This commit is contained in:
SarahW 2018-07-08 16:36:26 +01:00
commit e4e0f76d5c
1 changed files with 9 additions and 0 deletions
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9
src/codegen_backend_arm_uops.c
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@ -75,9 +75,18 @@ void codegen_reset_literal_pool(codeblock_t *block)
int add_literal(codeblock_t *block, uint32_t data)
{
int c;
if (literal_offset >= 4096)
fatal("add_literal - literal pool full\n");
/*Search for pre-existing value*/
for (c = 0; c < literal_offset; c += 4)
{
if (*(uint32_t *)&block->data[ARM_LITERAL_POOL_OFFSET + c] == data)
return c;
}
*(uint32_t *)&block->data[ARM_LITERAL_POOL_OFFSET + literal_offset] = data;
literal_offset += 4;