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Every register in i965 assembly implicitly has a concept of a "width". Usually, this is derived from the execution size of the instruction. However, when writing a compiler it turns out that it is frequently a useful to have the width explicitly in the register and derive the execution size of the instruction from the widths of the registers used in it. This commit adds a width field to fs_reg along with an effective_width() helper function. The effective_width() function tells you how wide the register effectively is when used in an instruction. For example, uniform values have width 1 since the data is not actually repeated, but when used in an instruction they take on the width of the instruction. However, for some instructions (LOAD_PAYLOAD being the notable exception), the width is not the same. Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com> Reviewed-by: Matt Turner <mattst88@gmail.com> |
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| egl | ||
| gallium | ||
| gbm | ||
| getopt | ||
| glsl | ||
| glx | ||
| gtest | ||
| hgl | ||
| loader | ||
| mapi | ||
| mesa | ||
| util | ||
| Makefile.am | ||
| SConscript | ||