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tgsi: make sse function callout mechanism more generic

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Take a list of arguments rather than hardcoding TEMP_R0.
This commit is contained in:
Keith Whitwell
2009-07-16 10:11:46 +01:00
parent ebc4a9bf2e
commit a01383ff6a
1 changed files with 48 additions and 40 deletions
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src/gallium/auxiliary/tgsi/tgsi_sse2.c
+48 -40
View File
@@ -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 );
}