Mesa (gallium-0.2): gallium: use PIPE_ARCH_SSE to protect use of SSE instrinsics only

[Brian Paul]

Module: Mesa
Branch: gallium-0.2
Commit: 399da3a337932c6074a69ac73e711138271308eb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=399da3a337932c6074a69ac73e711138271308eb

Author: Brian <brian.paul at tungstengraphics.com>
Date:   Sun Nov  9 09:36:22 2008 -0700

gallium: use PIPE_ARCH_SSE to protect use of SSE instrinsics only

This allows us to use SSE codegen with debug builds again.
When PIPE_ARCH_SSE is set (w/ gcc -msse -msse2) we will also use the
gcc SSE intrinsic functions.

---

 src/gallium/auxiliary/draw/draw_vs_sse.c |    2 +-
 src/gallium/auxiliary/tgsi/tgsi_sse2.c   |   42 +++++++++++++++++++++++------
 src/gallium/drivers/softpipe/sp_fs_sse.c |    2 +-
 3 files changed, 35 insertions(+), 11 deletions(-)

diff --git a/src/gallium/auxiliary/draw/draw_vs_sse.c b/src/gallium/auxiliary/draw/draw_vs_sse.c
index 0e2036f..77ba515 100644
--- a/src/gallium/auxiliary/draw/draw_vs_sse.c
+++ b/src/gallium/auxiliary/draw/draw_vs_sse.c
@@ -37,7 +37,7 @@
 
 #include "draw_vs.h"
 
-#if defined(PIPE_ARCH_X86) && defined(PIPE_ARCH_SSE)
+#if defined(PIPE_ARCH_X86)
 
 #include "pipe/p_shader_tokens.h"
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
index 3ce2c1c..f93db18 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
@@ -27,12 +27,14 @@
 
 #include "pipe/p_config.h"
 
-#if defined(PIPE_ARCH_X86) && defined(PIPE_ARCH_SSE)
+#if defined(PIPE_ARCH_X86)
 
 #include "pipe/p_debug.h"
 #include "pipe/p_shader_tokens.h"
 #include "util/u_math.h"
+#if defined(PIPE_ARCH_SSE)
 #include "util/u_sse.h"
+#endif
 #include "tgsi/tgsi_parse.h"
 #include "tgsi/tgsi_util.h"
 #include "tgsi_exec.h"
@@ -627,6 +629,9 @@ emit_func_call_dst_src(
       code );
 }
 
+
+#if defined(PIPE_ARCH_SSE)
+
 /*
  * Fast SSE2 implementation of special math functions.
  */
@@ -678,6 +683,7 @@ exp2f4(__m128 x)
    return _mm_mul_ps(expipart, expfpart);
 }
 
+
 /**
  * See http://www.devmaster.net/forums/showthread.php?p=43580
  */
@@ -720,12 +726,16 @@ log2f4(__m128 x)
    return _mm_add_ps(logmant, exp);
 }
 
+
 static INLINE __m128
 powf4(__m128 x, __m128 y)
 {
    return exp2f4(_mm_mul_ps(log2f4(x), y));
 }
 
+#endif /* PIPE_ARCH_SSE */
+
+
 
 /**
  * Low-level instruction translators.
@@ -780,13 +790,20 @@ emit_cos(
 }
 
 static void PIPE_CDECL
-#if defined(PIPE_CC_GCC)
+#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_SSE)
 __attribute__((force_align_arg_pointer))
 #endif
 ex24f(
    float *store )
 {
+#if defined(PIPE_ARCH_SSE)
    _mm_store_ps(&store[0], exp2f4( _mm_load_ps(&store[0]) ));
+#else
+   store[0] = util_fast_exp2( store[0] );
+   store[1] = util_fast_exp2( store[1] );
+   store[2] = util_fast_exp2( store[2] );
+   store[3] = util_fast_exp2( store[3] );
+#endif
 }
 
 static void
@@ -871,13 +888,20 @@ emit_frc(
 }
 
 static void PIPE_CDECL
-#if defined(PIPE_CC_GCC)
+#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_SSE)
 __attribute__((force_align_arg_pointer))
 #endif
 lg24f(
    float *store )
 {
+#if defined(PIPE_ARCH_SSE)
    _mm_store_ps(&store[0], log2f4( _mm_load_ps(&store[0]) ));
+#else
+   store[0] = util_fast_log2( store[0] );
+   store[1] = util_fast_log2( store[1] );
+   store[2] = util_fast_log2( store[2] );
+   store[3] = util_fast_log2( store[3] );
+#endif
 }
 
 static void
@@ -930,19 +954,19 @@ emit_neg(
 }
 
 static void PIPE_CDECL
-#if defined(PIPE_CC_GCC)
+#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_SSE)
 __attribute__((force_align_arg_pointer))
 #endif
 pow4f(
    float *store )
 {
-#if 1
+#if defined(PIPE_ARCH_SSE)
    _mm_store_ps(&store[0], powf4( _mm_load_ps(&store[0]), _mm_load_ps(&store[4]) ));
 #else
-   store[0] = powf( store[0], store[4] );
-   store[1] = powf( store[1], store[5] );
-   store[2] = powf( store[2], store[6] );
-   store[3] = powf( store[3], store[7] );
+   store[0] = util_fast_pow( store[0], store[4] );
+   store[1] = util_fast_pow( store[1], store[5] );
+   store[2] = util_fast_pow( store[2], store[6] );
+   store[3] = util_fast_pow( store[3], store[7] );
 #endif
 }
 
diff --git a/src/gallium/drivers/softpipe/sp_fs_sse.c b/src/gallium/drivers/softpipe/sp_fs_sse.c
index 8aa597f..31908a5 100644
--- a/src/gallium/drivers/softpipe/sp_fs_sse.c
+++ b/src/gallium/drivers/softpipe/sp_fs_sse.c
@@ -40,7 +40,7 @@
 #include "tgsi/tgsi_sse2.h"
 
 
-#if defined(PIPE_ARCH_X86) && defined(PIPE_ARCH_SSE)
+#if defined(PIPE_ARCH_X86)
 
 #include "rtasm/rtasm_x86sse.h"