[Mesa-dev] [PATCH] [RFC] gallivm: Use new LLVM fast-math-flags API

[Tobias Droste]

LLVM 6 changed the API on the fast-math-flags:
https://reviews.llvm.org/rL317488

NOTE: This also enables the new flag 'ApproxFunc' to allow for
approximations for library functions (sin, cos, ...). I'm not completly
convinced, that this is something mesa should do.

Signed-off-by: Tobias Droste <tdroste at gmx.de>
---
 src/gallium/auxiliary/gallivm/lp_bld_misc.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
index d988910a7e..1319407290 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
@@ -830,7 +830,11 @@ lp_create_builder(LLVMContextRef ctx, enum lp_float_mode float_mode)
       llvm::unwrap(builder)->setFastMathFlags(flags);
       break;
    case LP_FLOAT_MODE_UNSAFE_FP_MATH:
+#if HAVE_LLVM >= 0x0600
+      flags.setFast();
+#else
       flags.setUnsafeAlgebra();
+#endif
       llvm::unwrap(builder)->setFastMathFlags(flags);
       break;
    }
-- 
2.14.3