diff options
| author | Gert Wollny <gert.wollny@collabora.com> | 2018-08-10 15:04:17 +0200 |
|---|---|---|
| committer | Gert Wollny <gw.fossdev@gmail.com> | 2018-08-11 11:14:29 +0200 |
| commit | be95ca9be7b2a067b900979f7c01c1f2355509f5 (patch) | |
| tree | 17bbfcb04ec9bffe474df0012a9b0e1a6053c95b | |
| parent | 2ee1c86d71bee5ddca2c8795b4d343e31d28df99 (diff) | |
Gallium/tgsi: Correct signdness of return value of bit operations
The GLSL operations findLSB, findMSB, and countBits always return
a signed integer type. Let TGSI reflect this.
v2: Properly set values in infer_(src|dst)_type (Thanks Roland
Schneidegger for pointing out problems with my 1st approach)
v2: Set values in the common infer_type code path, and only add
the correct source type for UMSB (Roland Schneidegger)
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_info.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c index bbe1a21e432..d249b956ed3 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_info.c +++ b/src/gallium/auxiliary/tgsi/tgsi_info.c @@ -150,9 +150,6 @@ tgsi_opcode_infer_type(enum tgsi_opcode opcode) case TGSI_OPCODE_UBFE: case TGSI_OPCODE_BFI: case TGSI_OPCODE_BREV: - case TGSI_OPCODE_POPC: - case TGSI_OPCODE_LSB: - case TGSI_OPCODE_UMSB: case TGSI_OPCODE_IMG2HND: case TGSI_OPCODE_SAMP2HND: return TGSI_TYPE_UNSIGNED; @@ -188,6 +185,9 @@ tgsi_opcode_infer_type(enum tgsi_opcode opcode) case TGSI_OPCODE_U64SGE: case TGSI_OPCODE_I64SLT: case TGSI_OPCODE_I64SGE: + case TGSI_OPCODE_LSB: + case TGSI_OPCODE_POPC: + case TGSI_OPCODE_UMSB: return TGSI_TYPE_SIGNED; case TGSI_OPCODE_DADD: case TGSI_OPCODE_DABS: @@ -269,6 +269,7 @@ tgsi_opcode_infer_src_type(enum tgsi_opcode opcode, uint src_idx) case TGSI_OPCODE_UP2H: case TGSI_OPCODE_U2I64: case TGSI_OPCODE_MEMBAR: + case TGSI_OPCODE_UMSB: return TGSI_TYPE_UNSIGNED; case TGSI_OPCODE_IMUL_HI: case TGSI_OPCODE_I2F: |