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authorKeith Whitwell <keithw@vmware.com>2009-07-16 10:11:46 +0100
committerKeith Whitwell <keithw@vmware.com>2009-07-16 10:11:46 +0100
commita01383ff6ac87295a2c2bda45ddfac35530b0055 (patch)
tree6f88458ab7e401a5c943dfa396660fb5f930f452 /src/gallium/auxiliary/tgsi/tgsi_sse2.c
parentebc4a9bf2eff7d2c0d89785e865a1df23733e64b (diff)
tgsi: make sse function callout mechanism more generic
Take a list of arguments rather than hardcoding TEMP_R0.
Diffstat (limited to 'src/gallium/auxiliary/tgsi/tgsi_sse2.c')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_sse2.c88
1 files changed, 48 insertions, 40 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
index cfe8ef0ecf..5928f874a9 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
@@ -533,17 +533,13 @@ emit_coef_dady(
static void
emit_func_call(
struct x86_function *func,
- unsigned xmm_save,
- unsigned xmm_dst,
+ unsigned xmm_save_mask,
+ const struct x86_reg *arg,
+ unsigned nr_args,
void (PIPE_CDECL *code)() )
{
struct x86_reg ecx = x86_make_reg( file_REG32, reg_CX );
unsigned i, n;
- unsigned xmm_mask;
-
- /* Bitmask of the xmm registers to save */
- xmm_mask = (1 << xmm_save) - 1;
- xmm_mask &= ~(1 << xmm_dst);
x86_push(
func,
@@ -558,7 +554,7 @@ emit_func_call(
/* Store XMM regs to the stack
*/
for(i = 0, n = 0; i < 8; ++i)
- if(xmm_mask & (1 << i))
+ if(xmm_save_mask & (1 << i))
++n;
x86_sub_imm(
@@ -567,35 +563,42 @@ emit_func_call(
n*16);
for(i = 0, n = 0; i < 8; ++i)
- if(xmm_mask & (1 << i)) {
+ if(xmm_save_mask & (1 << i)) {
sse_movups(
func,
x86_make_disp( x86_make_reg( file_REG32, reg_SP ), n*16 ),
make_xmm( i ) );
++n;
}
+
+ for (i = 0; i < nr_args; i++) {
+ /* Load the address of the buffer we use for passing arguments and
+ * receiving results:
+ */
+ x86_lea(
+ func,
+ ecx,
+ arg[i] );
- /* Load the address of the buffer we use for passing arguments and
- * receiving results:
- */
- x86_lea(
- func,
- ecx,
- get_temp( TEMP_R0, 0 ) );
-
- /* Push actual function arguments (currently just the pointer to
- * the buffer above), and call the function:
- */
- x86_push( func, ecx );
+ /* Push actual function arguments (currently just the pointer to
+ * the buffer above), and call the function:
+ */
+ x86_push( func, ecx );
+ }
+
x86_mov_reg_imm( func, ecx, (unsigned long) code );
x86_call( func, ecx );
- x86_pop(func, ecx );
-
+
+ /* Pop the arguments (or just add an immediate to esp)
+ */
+ for (i = 0; i < nr_args; i++) {
+ x86_pop(func, ecx );
+ }
/* Pop the saved XMM regs:
*/
for(i = 0, n = 0; i < 8; ++i)
- if(xmm_mask & (1 << i)) {
+ if(xmm_save_mask & (1 << i)) {
sse_movups(
func,
make_xmm( i ),
@@ -621,7 +624,6 @@ emit_func_call(
x86_make_reg( file_REG32, reg_AX) );
}
-
static void
emit_func_call_dst_src1(
struct x86_function *func,
@@ -630,25 +632,28 @@ emit_func_call_dst_src1(
unsigned xmm_src0,
void (PIPE_CDECL *code)() )
{
+ struct x86_reg store = get_temp( TEMP_R0, 0 );
+ unsigned xmm_mask = ((1 << xmm_save) - 1) & ~(1 << xmm_dst);
+
/* Store our input parameters (in xmm regs) to the buffer we use
* for passing arguments. We will pass a pointer to this buffer as
* the actual function argument.
*/
sse_movaps(
func,
- get_temp( TEMP_R0, 0 ),
+ store,
make_xmm( xmm_src0 ) );
- emit_func_call(
- func,
- xmm_save,
- xmm_dst,
- code );
+ emit_func_call( func,
+ xmm_mask,
+ &store,
+ 1,
+ code );
sse_movaps(
func,
make_xmm( xmm_dst ),
- get_temp( TEMP_R0, 0 ) );
+ store );
}
@@ -661,33 +666,36 @@ emit_func_call_dst_src2(
unsigned xmm_src1,
void (PIPE_CDECL *code)() )
{
+ struct x86_reg store = get_temp( TEMP_R0, 0 );
+ unsigned xmm_mask = ((1 << xmm_save) - 1) & ~(1 << xmm_dst);
+
/* Store two inputs to parameter buffer.
*/
sse_movaps(
func,
- get_temp( TEMP_R0, 0 ),
+ store,
make_xmm( xmm_src0 ) );
sse_movaps(
func,
- get_temp( TEMP_R0, 1 ),
+ x86_make_disp( store, 4 * sizeof(float) ),
make_xmm( xmm_src1 ) );
/* Emit the call
*/
- emit_func_call(
- func,
- xmm_save,
- xmm_dst,
- code );
+ emit_func_call( func,
+ xmm_mask,
+ &store,
+ 1,
+ code );
/* Retrieve the results:
*/
sse_movaps(
func,
make_xmm( xmm_dst ),
- get_temp( TEMP_R0, 0 ) );
+ store );
}