diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp index 0da5f13..80ad4b4 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp @@ -333,18 +333,17 @@ can_take_stride(fs_inst *inst, unsigned arg, unsigned stride, } /** - * Check that the register region read by src [src.reg_offset, - * src.reg_offset + regs_read] is contained inside the register - * region written by dst [dst.reg_offset, dst.reg_offset + regs_written] - * Both src and dst must have the same register number and file. + * Check that the register region read by src [src.offset, + * src.offset + size_read[ is fully contained inside the register + * region written by dst [dst.offset, dst.offset + size_written[. */ static inline bool -region_contained_in(const fs_reg &src, unsigned regs_read, - const fs_reg &dst, unsigned regs_written) +region_contained_in(const fs_reg &src, unsigned size_read, + const fs_reg &dst, unsigned size_written) { return src.file == dst.file && src.nr == dst.nr && src.offset >= dst.offset && - src.offset / REG_SIZE + regs_read <= dst.offset / REG_SIZE + regs_written; + src.offset + size_read <= dst.offset + size_written; } bool @@ -369,10 +368,8 @@ fs_visitor::try_copy_propagate(fs_inst *inst, int arg, acp_entry *entry) /* Bail if inst is reading a range that isn't contained in the range * that entry is writing. */ - if (!region_contained_in(inst->src[arg], DIV_ROUND_UP(inst->size_read(arg), - REG_SIZE), - entry->dst, DIV_ROUND_UP(entry->size_written, - REG_SIZE))) + if (!region_contained_in(inst->src[arg], inst->size_read(arg), + entry->dst, entry->size_written)) return false; /* we can't generally copy-propagate UD negations because we @@ -527,10 +524,8 @@ fs_visitor::try_constant_propagate(fs_inst *inst, acp_entry *entry) /* Bail if inst is reading a range that isn't contained in the range * that entry is writing. */ - if (!region_contained_in(inst->src[i], DIV_ROUND_UP(inst->size_read(i), - REG_SIZE), - entry->dst, DIV_ROUND_UP(entry->size_written, - REG_SIZE))) + if (!region_contained_in(inst->src[i], inst->size_read(i), + entry->dst, entry->size_written)) continue; /* If the type sizes don't match each channel of the instruction is |