i965: Use float calculations when double is unnecessary.

Literals without an f/F suffix are of type double, and implicit
conversion rules specify that the float in (float op double) be
converted to a double before the operation is performed. I believe float
execution was intended (in nearly all cases) or is sufficient (in the
case of gen7_urb.c).

Removes a lot of float <-> double conversion instructions and replaces
many double instructions with float instructions which are cheaper.

   text     data      bss      dec      hex  filename
4928659   195160    26192  5150011   4e953b  i965_dri.so before
4928315   195152    26192  5149659   4e93db  i965_dri.so after

Reviewed-by: Iago Toral Quiroga <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c b/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
index d4abfe63de7..aa6df16eb04 100644
--- a/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
+++ b/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
@@ -239,10 +239,10 @@ setup_coord_coeff(GLuint prog, GLuint multiplier, GLuint offset,
 
    if (mirror) {
       _mesa_Uniform1f(multiplier, -scale);
-      _mesa_Uniform1f(offset, src_0 + (dst_1 - 0.5) * scale);
+      _mesa_Uniform1f(offset, src_0 + (dst_1 - 0.5f) * scale);
    } else {
       _mesa_Uniform1f(multiplier, scale);
-      _mesa_Uniform1f(offset, src_0 + (-dst_0 + 0.5) * scale);
+      _mesa_Uniform1f(offset, src_0 + (-dst_0 + 0.5f) * scale);
    }
 }