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| author | Samuel Pitoiset <samuel.pitoiset@gmail.com> | 2019-08-27 11:35:00 +0200 |
|---|---|---|
| committer | Dylan Baker <dylan@pnwbakers.com> | 2019-09-04 16:25:49 -0700 |
| commit | 3ef013f0e986652bedbe7b2b8f9904113c866105 (patch) | |
| tree | dfc9898721de7777804ab62b8e465f52081eb3da | |
| parent | b84cbdfd4da9607100e5a6ae0d2fc0ee707953b2 (diff) | |
| download | mesa-3ef013f0e986652bedbe7b2b8f9904113c866105.tar.gz | |
nir: do not assume that the result of fexp2(a) is always an integral
It's only correct when 'a' is an integral greater or equal to 0.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111493
Fixes: 5544b2cbbd2 ("nir/algebraic: Use value range analysis to eliminate useless unary ops")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 966a455bb912cc9fd22580c6cf9b74e27faa4491)
(conflicts resolved by Dylan Baker)
| -rw-r--r-- | src/compiler/nir/nir_range_analysis.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_range_analysis.c b/src/compiler/nir/nir_range_analysis.c index 28ed8ac846e..114dedb49c1 100644 --- a/src/compiler/nir/nir_range_analysis.c +++ b/src/compiler/nir/nir_range_analysis.c @@ -463,6 +463,7 @@ analyze_expression(const nir_alu_instr *instr, unsigned src, r = analyze_expression(alu, 0, ht); + r.is_integral = r.is_integral && is_not_negative(r.range); r.range = table[r.range]; break; } |