diff options
| author | Zack Rusin <[email protected]> | 2013-10-08 15:11:02 -0400 |
|---|---|---|
| committer | Zack Rusin <[email protected]> | 2013-10-09 18:30:20 -0400 |
| commit | 6905698fc21710c18722295dedceb96ef5d5923b (patch) | |
| tree | 448459df4604df868382f02fac033f354356f1c0 /src/gallium/auxiliary/tgsi/tgsi_util.c | |
| parent | c01c6a95b41607dc58a343b2aa67bc3da673ca35 (diff) | |
gallium: Add support for 32x32 muls with 64 bit results
The code introduces two new 32bit integer multiplication opcodes which
can be used to produce correct 64 bit results. GLSL, OpenCL and D3D10+
require them. We use two seperate opcodes, because they match the
behavior of GLSL and OpenCL, are a lot easier to add than a single
opcode with multiple destinations and because there's not much (any)
difference wrt code-generation.
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: José Fonseca <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/tgsi/tgsi_util.c')
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_util.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_util.c b/src/gallium/auxiliary/tgsi/tgsi_util.c index b3bc8f283a4..73a0667fd06 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_util.c +++ b/src/gallium/auxiliary/tgsi/tgsi_util.c @@ -243,6 +243,8 @@ tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst, case TGSI_OPCODE_USHR: case TGSI_OPCODE_USLT: case TGSI_OPCODE_USNE: + case TGSI_OPCODE_IMUL_HI: + case TGSI_OPCODE_UMUL_HI: /* Channel-wise operations */ read_mask = write_mask; break; |