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(parent: ccf14bc) | patch
nir: Add a flag for lowering fsqrt(x) to frcp(frsqrt(x)).
authorEric Anholt <eric@anholt.net>
Wed, 28 Jan 2015 18:39:29 +0000 (10:39 -0800)
committerEric Anholt <eric@anholt.net>
Wed, 18 Feb 2015 22:47:50 +0000 (14:47 -0800)
commitcb95a228e81a963d77f50058c7406db0ad3bccac
treeabfe7e9ac2679b79d8be1c528bf915a4f1d0c3e0tree
parentccf14bca4b892a0dffa1d8c244bfabe384d70f98commit | diff
nir: Add a flag for lowering fsqrt(x) to frcp(frsqrt(x)).

vc4 cse/algebraic-disabled stats:
total uniforms in shared programs: 13972 -> 13966 (-0.04%)
uniforms in affected programs:     408 -> 402 (-1.47%)
total instructions in shared programs: 44973 -> 44911 (-0.14%)
instructions in affected programs:     1551 -> 1489 (-4.00%)

v2: Rebase to master (no TGSI->NIR present)

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v1)
src/glsl/nir/nir.h diff | blob | history
src/glsl/nir/nir_opt_algebraic.py diff | blob | history