randrproto xkeyboard-config fontconfig libX11 libXdmcp libXmu pixman xkbcomp xserver mesa git update 20 Apr 2015

xserver          commit b1029716e41e252f149b82124a149da180607c96
xkeyboard-config commit 7d00bcc2d9c3944bbdfcbe472ee3299729dc7687
libX11           commit 748d47e69f5c12d8557d56a8a8ec166588da7b93
libXdmcp         commit b10f382e3aa2e86cd5a2bc27d6758da55f0ab1f6
xkbcomp          commit 1ae525b3d236b59e6437b2b5433d460e18370973
pixman           commit 58e21d3e45c5227c2ca9ac00cf044f22a7975180
randrproto       commit 98da0d6e48b7d124d6788ea568e9f9e3dc204322
libXmu           commit 4459e6940fe3fdf26a8d5d4c71989498bc400a62
fontconfig       commit 07be485a0a84995ce69bf60e3b1bb22cb35f6b0e
mesa             commit c1485f4b7d044724b3dbc1011f3c3a8a53132010

1 files changed, 55 insertions, 8 deletions

diff --git a/mesalib/src/glsl/nir/nir_opt_algebraic.py b/mesalib/src/glsl/nir/nir_opt_algebraic.py
index ef855aa77..cdb19241c 100644
--- a/mesalib/src/glsl/nir/nir_opt_algebraic.py
+++ b/mesalib/src/glsl/nir/nir_opt_algebraic.py
@@ -75,6 +75,9 @@ optimizations = [
    (('flrp', a, b, 1.0), b),
    (('flrp', a, a, b), a),
    (('flrp', 0.0, a, b), ('fmul', a, b)),
+   (('flrp', a, b, c), ('fadd', ('fmul', c, ('fsub', b, a)), a), 'options->lower_flrp'),
+   (('fadd', ('fmul', a, ('fadd', 1.0, ('fneg', c))), ('fmul', b, c)), ('flrp', a, b, c), '!options->lower_flrp'),
+   (('fadd', a, ('fmul', c, ('fadd', b, ('fneg', a)))), ('flrp', a, b, c), '!options->lower_flrp'),
    (('ffma', a, b, c), ('fadd', ('fmul', a, b), c), 'options->lower_ffma'),
    (('fadd', ('fmul', a, b), c), ('ffma', a, b, c), '!options->lower_ffma'),
    # Comparison simplifications
@@ -82,10 +85,6 @@ optimizations = [
    (('inot', ('fge', a, b)), ('flt', a, b)),
    (('inot', ('ilt', a, b)), ('ige', a, b)),
    (('inot', ('ige', a, b)), ('ilt', a, b)),
-   (('flt', ('fadd', a, b), 0.0), ('flt', a, ('fneg', b))),
-   (('fge', ('fadd', a, b), 0.0), ('fge', a, ('fneg', b))),
-   (('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))),
-   (('fne', ('fadd', a, b), 0.0), ('fne', a, ('fneg', b))),
    (('fge', ('fneg', ('fabs', a)), 0.0), ('feq', a, 0.0)),
    (('bcsel', ('flt', a, b), a, b), ('fmin', a, b)),
    (('bcsel', ('flt', a, b), b, a), ('fmax', a, b)),
@@ -95,6 +94,18 @@ optimizations = [
    (('fsat', a), ('fmin', ('fmax', a, 0.0), 1.0), 'options->lower_fsat'),
    (('fsat', ('fsat', a)), ('fsat', a)),
    (('fmin', ('fmax', ('fmin', ('fmax', a, 0.0), 1.0), 0.0), 1.0), ('fmin', ('fmax', a, 0.0), 1.0)),
+   (('ior', ('flt', a, b), ('flt', a, c)), ('flt', a, ('fmax', b, c))),
+   (('ior', ('fge', a, b), ('fge', a, c)), ('fge', a, ('fmin', b, c))),
+   (('slt', a, b), ('b2f', ('flt', a, b)), 'options->lower_scmp'),
+   (('sge', a, b), ('b2f', ('fge', a, b)), 'options->lower_scmp'),
+   (('seq', a, b), ('b2f', ('feq', a, b)), 'options->lower_scmp'),
+   (('sne', a, b), ('b2f', ('fne', a, b)), 'options->lower_scmp'),
+   # Emulating booleans
+   (('fmul', ('b2f', a), ('b2f', b)), ('b2f', ('iand', a, b))),
+   (('fsat', ('fadd', ('b2f', a), ('b2f', b))), ('b2f', ('ior', a, b))),
+   (('iand', 'a@bool', 1.0), ('b2f', a)),
+   (('flt', ('fneg', ('b2f', a)), 0), a), # Generated by TGSI KILL_IF.
+   (('flt', ('fsub', 0.0, ('b2f', a)), 0), a), # Generated by TGSI KILL_IF.
    # Comparison with the same args.  Note that these are not done for
    # the float versions because NaN always returns false on float
    # inequalities.
@@ -122,7 +133,7 @@ optimizations = [
    (('ishr', 0, a), 0),
    (('ishr', a, 0), a),
    (('ushr', 0, a), 0),
-   (('ushr', a, 0), 0),
+   (('ushr', a, 0), a),
    # Exponential/logarithmic identities
    (('fexp2', ('flog2', a)), a), # 2^lg2(a) = a
    (('fexp',  ('flog',  a)), a), # e^ln(a)  = a
@@ -134,6 +145,26 @@ optimizations = [
    (('fpow', a, 1.0), a),
    (('fpow', a, 2.0), ('fmul', a, a)),
    (('fpow', 2.0, a), ('fexp2', a)),
+   (('fsqrt', ('fexp2', a)), ('fexp2', ('fmul', 0.5, a))),
+   (('fsqrt', ('fexp', a)), ('fexp', ('fmul', 0.5, a))),
+   (('frcp', ('fexp2', a)), ('fexp2', ('fneg', a))),
+   (('frcp', ('fexp', a)), ('fexp', ('fneg', a))),
+   (('frsq', ('fexp2', a)), ('fexp2', ('fmul', -0.5, a))),
+   (('frsq', ('fexp', a)), ('fexp', ('fmul', -0.5, a))),
+   (('flog2', ('fsqrt', a)), ('fmul', 0.5, ('flog2', a))),
+   (('flog', ('fsqrt', a)), ('fmul', 0.5, ('flog', a))),
+   (('flog2', ('frcp', a)), ('fneg', ('flog2', a))),
+   (('flog', ('frcp', a)), ('fneg', ('flog', a))),
+   (('flog2', ('frsq', a)), ('fmul', -0.5, ('flog2', a))),
+   (('flog', ('frsq', a)), ('fmul', -0.5, ('flog', a))),
+   (('flog2', ('fpow', a, b)), ('fmul', b, ('flog2', a))),
+   (('flog', ('fpow', a, b)), ('fmul', b, ('flog', a))),
+   (('fadd', ('flog2', a), ('flog2', b)), ('flog2', ('fmul', a, b))),
+   (('fadd', ('flog', a), ('flog', b)), ('flog', ('fmul', a, b))),
+   (('fadd', ('flog2', a), ('fneg', ('flog2', b))), ('flog2', ('fdiv', a, b))),
+   (('fadd', ('flog', a), ('fneg', ('flog', b))), ('flog', ('fdiv', a, b))),
+   (('fmul', ('fexp2', a), ('fexp2', b)), ('fexp2', ('fadd', a, b))),
+   (('fmul', ('fexp', a), ('fexp', b)), ('fexp', ('fadd', a, b))),
    # Division and reciprocal
    (('fdiv', 1.0, a), ('frcp', a)),
    (('frcp', ('frcp', a)), a),
@@ -154,18 +185,21 @@ optimizations = [
    (('bcsel', a, b, b), b),
    (('fcsel', a, b, b), b),
 
+   # Conversions
+   (('f2i', ('ftrunc', a)), ('f2i', a)),
+   (('f2u', ('ftrunc', a)), ('f2u', a)),
+
    # Subtracts
    (('fsub', a, ('fsub', 0.0, b)), ('fadd', a, b)),
    (('isub', a, ('isub', 0, b)), ('iadd', a, b)),
+   (('fsub', a, b), ('fadd', a, ('fneg', b)), 'options->lower_sub'),
+   (('isub', a, b), ('iadd', a, ('ineg', b)), 'options->lower_sub'),
    (('fneg', a), ('fsub', 0.0, a), 'options->lower_negate'),
    (('ineg', a), ('isub', 0, a), 'options->lower_negate'),
    (('fadd', a, ('fsub', 0.0, b)), ('fsub', a, b)),
    (('iadd', a, ('isub', 0, b)), ('isub', a, b)),
    (('fabs', ('fsub', 0.0, a)), ('fabs', a)),
    (('iabs', ('isub', 0, a)), ('iabs', a)),
-
-# This one may not be exact
-   (('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))),
 ]
 
 # Add optimizations to handle the case where the result of a ternary is
@@ -189,4 +223,17 @@ for op in ['flt', 'fge', 'feq', 'fne',
        ('bcsel', 'a', (op, 'd', 'b'), (op, 'd', 'c'))),
    ]
 
+# This section contains "late" optimizations that should be run after the
+# regular optimizations have finished.  Optimizations should go here if
+# they help code generation but do not necessarily produce code that is
+# more easily optimizable.
+late_optimizations = [
+   (('flt', ('fadd', a, b), 0.0), ('flt', a, ('fneg', b))),
+   (('fge', ('fadd', a, b), 0.0), ('fge', a, ('fneg', b))),
+   (('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))),
+   (('fne', ('fadd', a, b), 0.0), ('fne', a, ('fneg', b))),
+]
+
 print nir_algebraic.AlgebraicPass("nir_opt_algebraic", optimizations).render()
+print nir_algebraic.AlgebraicPass("nir_opt_algebraic_late",
+                                  late_optimizations).render()