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i965/fs: Use unsigned immediate 0 when eliminating SHADER_OPCODE_FIND_LIVE_CHANNEL

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The destination for SHADER_OPCODE_FIND_LIVE_CHANNEL is always a UD
register.  When we replace the opcode with a MOV, make sure we use a UD
immediate 0 so copy propagation doesn't bail because of non-matching
types.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Kristian Høgsberg Kristensen <krh@bitplanet.net>
This commit is contained in:
Kristian Høgsberg Kristensen 2015-10-20 23:07:56 -07:00
parent 24a3a697e5
commit aedc0aab19
1 changed files with 1 additions and 1 deletions
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2
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -2614,7 +2614,7 @@ fs_visitor::eliminate_find_live_channel()
case SHADER_OPCODE_FIND_LIVE_CHANNEL:
if (depth == 0) {
inst->opcode = BRW_OPCODE_MOV;
inst->src[0] = fs_reg(0);
inst->src[0] = fs_reg(0u);
inst->sources = 1;
inst->force_writemask_all = true;
progress = true;