June 19, 2018 
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June 19, 2018 [00:32:53] *** hs_ <hs_!~hs_@2601:600:877f:ffdd:b939:5f39:2b5b:ef64> has quit IRC (Ping timeout: 276 seconds)[00:44:22] *** marijnfs <marijnfs!~smuxi@2a01:c23:bc1c:0:a04b:5ae6:606f:3818> has quit IRC (Ping timeout: 245 seconds)[00:44:48] *** hs_ <hs_!~hs_@2601:600:877f:ffdd:3c1e:7e0c:133b:c1b5> has joined ##vulkan[00:45:57] *** goiko <goiko!~goiko@unaffiliated/goiko> has quit IRC (Ping timeout: 264 seconds)[01:04:41] *** goiko <goiko!~goiko@p5DEB7320.dip0.t-ipconnect.de> has joined ##vulkan[01:04:41] *** goiko <goiko!~goiko@p5DEB7320.dip0.t-ipconnect.de> has quit IRC (Changing host)[01:04:41] *** goiko <goiko!~goiko@unaffiliated/goiko> has joined ##vulkan[01:12:20] *** backthen <backthen!a2f6d81c@gateway/web/cgi-irc/kiwiirc.com/ip.162.246.216.28> has joined ##vulkan[01:13:29] <backthen> hi, what does it mean for a renderpass to use loadop = dontcare? How does the HW optimize for this[01:14:14] <ratchetfreak> it doesn't pull in the data from the vram into cache and doesn't spend any time clearing the cache either[01:14:52] <ratchetfreak> it is meant to just leave whatever was there and use that as the target[01:17:49] <backthen> Is the cache the fast memory of the tiled framebuffer?[01:19:38] *** cramalho <cramalho!~cramalho@179.190.254.211> has joined ##vulkan[01:22:17] <chrisf> exactly how this works depends on the hw.[01:25:05] *** cheakoirccloud <cheakoirccloud!uid293319@gateway/web/irccloud.com/x-ouroneddntzjyedn> has quit IRC (Quit: Connection closed for inactivity)[01:28:46] <backthen> ok. There is a multiple render pass situation. Previously each render pass used load and store. I saw a hack/optimization that changed each render pass' load to dontcare.[01:28:59] <backthen> I don't know how that works[01:50:48] *** random_james is now known as random_james_awy[01:51:58] *** davr0s <davr0s!~textual@host86-153-157-230.range86-153.btcentralplus.com> has joined ##vulkan[01:59:37] *** derhass <derhass!~derhass@ipservice-092-208-158-056.092.208.pools.vodafone-ip.de> has quit IRC (Quit: leaving)[02:29:36] *** MrFlibble2 <MrFlibble2!MrFlibble@2.122.47.217> has quit IRC (Quit: MrFlibble2)[02:30:40] *** ratchetfreak <ratchetfreak!~ratchetfr@ptr-82s3g7lgupdkti53lhr.18120a2.ip6.access.telenet.be> has quit IRC (Ping timeout: 256 seconds)[02:42:12] *** ZeroWalker <ZeroWalker!~Zerowalke@78-67-154-24-no268.tbcn.telia.com> has quit IRC (Quit: Leaving)[03:04:28] *** davr0s <davr0s!~textual@host86-153-157-230.range86-153.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. 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ZZZzzz…)[22:02:40] <dyl> turol minor question about __builtin_unreachable, does it (in general) only silence particular warnings, or also allow for optimization opportunities?[22:03:30] <dyl> It looks like GCC does some pretty nasty stuff with __builtin_unreachable, essentially to make optimizer assertions. :|[22:03:51] *** ratchetfreak_ is now known as ratchetfreak[22:04:04] <dyl> ah: http://nondot.org/sabre/LLVMNotes/BuiltinUnreachable.txt[22:04:08] <dyl> answered my own question it appears.[22:04:38] <ratchetfreak> that is kinda the point of it, it allows the compiler to assume that whatever condition let to that branch can never happen and you are willing to bet your nostrels on it[22:07:11] *** davr0s <davr0s!~textual@host86-153-157-230.range86-153.btcentralplus.com> has joined ##vulkan[22:13:06] *** borkr <borkr!~borkr@static130-244.mimer.net> has quit IRC (Remote host closed the connection)[22:13:31] *** borkr <borkr!~borkr@static130-244.mimer.net> has joined ##vulkan[22:17:02] *** realitix <realitix!~realitix@80.12.37.71> has joined ##vulkan[22:17:40] *** realitix <realitix!~realitix@80.12.37.71> has quit IRC (Client Quit)[22:17:57] *** realitix <realitix!~realitix@80.12.37.71> has joined ##vulkan[22:25:57] *** borkr <borkr!~borkr@static130-244.mimer.net> has quit IRC (Ping timeout: 240 seconds)[22:29:00] *** ville <ville!~ville@178-55-193-170.bb.dnainternet.fi> has quit IRC (Ping timeout: 245 seconds)[22:30:05] *** ville <ville!~ville@178-55-193-170.bb.dnainternet.fi> has joined ##vulkan[22:41:43] *** realitix <realitix!~realitix@80.12.37.71> has quit IRC (Quit: realitix)[22:45:37] *** ImQ009 <ImQ009!~ImQ009@unaffiliated/imq009> has quit IRC (Quit: Leaving)[22:53:49] *** psychicist__ <psychicist__!~psychicis@5356A22B.cm-6-7c.dynamic.ziggo.nl> has quit IRC (Quit: Lost terminal)[23:03:47] *** herbmillerjr <herbmillerjr!~herb@c-76-120-173-141.hsd1.pa.comcast.net> has joined ##vulkan[23:08:13] *** nsf <nsf!~nsf@jiss.convex.ru> has quit IRC (Quit: WeeChat 2.1)[23:17:21] *** Deluxe <Deluxe!~Deluxe@212.4.150.151> has quit IRC (Read error: Connection reset by peer)[23:37:08] <dyl> ratchetfreak: how badly can it go when it’s not unreachable?[23:37:28] <ratchetfreak> nasal demons[23:48:13] *** ajmiles <ajmiles!~aj@88.98.207.221> has quit IRC (Quit: Leaving)[23:50:17] *** MrFlibble <MrFlibble!MrFlibble@2.122.47.217> has joined ##vulkan