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i965/fs: Fix horiz_offset() to handle ARF and HW GRF register files.

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We'll hit these in some cases during SIMD lowering in 32-wide
programs.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Francisco Jerez 2016-05-17 17:32:55 -07:00
parent 7d430fc05e
commit 8c9601ef7b
1 changed files with 10 additions and 4 deletions
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14
src/mesa/drivers/dri/i965/brw_ir_fs.h
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@ -113,7 +113,7 @@ byte_offset(fs_reg reg, unsigned delta)
}
static inline fs_reg
horiz_offset(fs_reg reg, unsigned delta)
horiz_offset(const fs_reg &reg, unsigned delta)
{
switch (reg.file) {
case BAD_FILE:
@ -121,17 +121,23 @@ horiz_offset(fs_reg reg, unsigned delta)
case IMM:
/* These only have a single component that is implicitly splatted. A
* horizontal offset should be a harmless no-op.
* XXX - Handle vector immediates correctly.
*/
break;
return reg;
case VGRF:
case MRF:
case ATTR:
return byte_offset(reg, delta * reg.stride * type_sz(reg.type));
case ARF:
case FIXED_GRF:
assert(delta == 0);
if (reg.is_null()) {
return reg;
} else {
const unsigned stride = reg.hstride ? 1 << (reg.hstride - 1) : 0;
return byte_offset(reg, delta * stride * type_sz(reg.type));
}
}
return reg;
unreachable("Invalid register file");
}
/**