gallivm: Always use floating-point operators for floating-point types

This fixes the assert added in LLVM 2.8:
assert(getType()->isIntOrIntVectorTy() &&
       "Tried to create an integer operation on a non-integer type!")

But it also fixes some subtle bugs, since we should've been doing this
since LLVM 2.6 anyway.

Includes a modified patch from steckdenis@yahoo.fr for the
FNeg instructions in emit_fetch(); thanks for pointing those out.

http://bugs.freedesktop.org/29404
http://bugs.freedesktop.org/29407

Signed-off-by: José Fonseca <jfonseca@vmware.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_quad.c b/src/gallium/auxiliary/gallivm/lp_bld_quad.c
index ca36046..7b10889 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_quad.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_quad.c
@@ -85,7 +85,7 @@ lp_build_scalar_ddx(struct lp_build_context *bld,
    LLVMValueRef idx_right = LLVMConstInt(LLVMInt32Type(), LP_BLD_QUAD_TOP_RIGHT, 0);
    LLVMValueRef a_left  = LLVMBuildExtractElement(bld->builder, a, idx_left, "");
    LLVMValueRef a_right = LLVMBuildExtractElement(bld->builder, a, idx_right, "");
-   return LLVMBuildSub(bld->builder, a_right, a_left, "");
+   return lp_build_sub(bld, a_right, a_left);
 }
 
 
@@ -97,5 +97,5 @@ lp_build_scalar_ddy(struct lp_build_context *bld,
    LLVMValueRef idx_bottom = LLVMConstInt(LLVMInt32Type(), LP_BLD_QUAD_BOTTOM_LEFT, 0);
    LLVMValueRef a_top    = LLVMBuildExtractElement(bld->builder, a, idx_top, "");
    LLVMValueRef a_bottom = LLVMBuildExtractElement(bld->builder, a, idx_bottom, "");
-   return LLVMBuildSub(bld->builder, a_bottom, a_top, "");
+   return lp_build_sub(bld, a_bottom, a_top);
 }