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path: root/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
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Diffstat (limited to 'src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c')
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c171
1 files changed, 158 insertions, 13 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index 5f2c2a54ee..f160be878f 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -41,6 +41,7 @@
#include "util/u_debug.h"
#include "util/u_math.h"
#include "util/u_memory.h"
+#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_info.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_util.h"
@@ -95,6 +96,19 @@ struct lp_exec_mask {
int cond_stack_size;
LLVMValueRef cond_mask;
+ LLVMValueRef break_stack[LP_TGSI_MAX_NESTING];
+ int break_stack_size;
+ LLVMValueRef break_mask;
+
+ LLVMValueRef cont_stack[LP_TGSI_MAX_NESTING];
+ int cont_stack_size;
+ LLVMValueRef cont_mask;
+
+ LLVMBasicBlockRef loop_stack[LP_TGSI_MAX_NESTING];
+ int loop_stack_size;
+ LLVMBasicBlockRef loop_block;
+
+
LLVMValueRef exec_mask;
};
@@ -145,15 +159,33 @@ static void lp_exec_mask_init(struct lp_exec_mask *mask, struct lp_build_context
mask->bld = bld;
mask->has_mask = FALSE;
mask->cond_stack_size = 0;
+ mask->loop_stack_size = 0;
+ mask->break_stack_size = 0;
+ mask->cont_stack_size = 0;
mask->int_vec_type = lp_build_int_vec_type(mask->bld->type);
}
static void lp_exec_mask_update(struct lp_exec_mask *mask)
{
- mask->exec_mask = mask->cond_mask;
- if (mask->cond_stack_size > 0)
- mask->has_mask = TRUE;
+ if (mask->loop_stack_size) {
+ /*for loops we need to update the entire mask at
+ * runtime */
+ LLVMValueRef tmp;
+ tmp = LLVMBuildAnd(mask->bld->builder,
+ mask->cont_mask,
+ mask->break_mask,
+ "maskcb");
+ mask->exec_mask = LLVMBuildAnd(mask->bld->builder,
+ mask->cond_mask,
+ tmp,
+ "maskfull");
+ } else
+ mask->exec_mask = mask->cond_mask;
+
+
+ mask->has_mask = (mask->cond_stack_size > 0 ||
+ mask->loop_stack_size > 0);
}
static void lp_exec_mask_cond_push(struct lp_exec_mask *mask,
@@ -190,6 +222,89 @@ static void lp_exec_mask_cond_pop(struct lp_exec_mask *mask)
lp_exec_mask_update(mask);
}
+static void lp_exec_bgnloop(struct lp_exec_mask *mask)
+{
+
+ if (mask->cont_stack_size == 0)
+ mask->cont_mask = LLVMConstAllOnes(mask->int_vec_type);
+ if (mask->cont_stack_size == 0)
+ mask->break_mask = LLVMConstAllOnes(mask->int_vec_type);
+ if (mask->cond_stack_size == 0)
+ mask->cond_mask = LLVMConstAllOnes(mask->int_vec_type);
+ mask->loop_stack[mask->loop_stack_size++] = mask->loop_block;
+ mask->loop_block = lp_build_insert_new_block(mask->bld->builder, "bgnloop");
+ LLVMBuildBr(mask->bld->builder, mask->loop_block);
+ LLVMPositionBuilderAtEnd(mask->bld->builder, mask->loop_block);
+
+ lp_exec_mask_update(mask);
+}
+
+static void lp_exec_break(struct lp_exec_mask *mask)
+{
+ LLVMValueRef exec_mask = LLVMBuildNot(mask->bld->builder,
+ mask->exec_mask,
+ "break");
+
+ mask->break_stack[mask->break_stack_size++] = mask->break_mask;
+ if (mask->break_stack_size > 1) {
+ mask->break_mask = LLVMBuildAnd(mask->bld->builder,
+ mask->break_mask,
+ exec_mask, "break_full");
+ } else
+ mask->break_mask = exec_mask;
+
+ lp_exec_mask_update(mask);
+}
+
+static void lp_exec_continue(struct lp_exec_mask *mask)
+{
+ LLVMValueRef exec_mask = LLVMBuildNot(mask->bld->builder,
+ mask->exec_mask,
+ "");
+
+ mask->cont_stack[mask->cont_stack_size++] = mask->cont_mask;
+ if (mask->cont_stack_size > 1) {
+ mask->cont_mask = LLVMBuildAnd(mask->bld->builder,
+ mask->cont_mask,
+ exec_mask, "");
+ } else
+ mask->cont_mask = exec_mask;
+
+ lp_exec_mask_update(mask);
+}
+
+
+static void lp_exec_endloop(struct lp_exec_mask *mask)
+{
+ LLVMBasicBlockRef endloop;
+ LLVMTypeRef reg_type = LLVMIntType(mask->bld->type.width*
+ mask->bld->type.length);
+ /* i1cond = (mask == 0) */
+ LLVMValueRef i1cond = LLVMBuildICmp(
+ mask->bld->builder,
+ LLVMIntNE,
+ LLVMBuildBitCast(mask->bld->builder, mask->break_mask, reg_type, ""),
+ LLVMConstNull(reg_type), "");
+
+ endloop = lp_build_insert_new_block(mask->bld->builder, "endloop");
+
+ LLVMBuildCondBr(mask->bld->builder,
+ i1cond, mask->loop_block, endloop);
+
+ LLVMPositionBuilderAtEnd(mask->bld->builder, endloop);
+
+ mask->loop_block = mask->loop_stack[--mask->loop_stack_size];
+ /* pop the break mask */
+ if (mask->cont_stack_size) {
+ mask->cont_mask = mask->cont_stack[--mask->cont_stack_size];
+ }
+ if (mask->break_stack_size) {
+ mask->break_mask = mask->cont_stack[--mask->break_stack_size];
+ }
+
+ lp_exec_mask_update(mask);
+}
+
static void lp_exec_mask_store(struct lp_exec_mask *mask,
LLVMValueRef val,
LLVMValueRef dst)
@@ -360,7 +475,7 @@ emit_store(
break;
case TGSI_SAT_MINUS_PLUS_ONE:
- value = lp_build_max(&bld->base, value, lp_build_const_scalar(bld->base.type, -1.0));
+ value = lp_build_max(&bld->base, value, lp_build_const_vec(bld->base.type, -1.0));
value = lp_build_min(&bld->base, value, bld->base.one);
break;
@@ -384,6 +499,11 @@ emit_store(
assert(0);
break;
+ case TGSI_FILE_PREDICATE:
+ /* FIXME */
+ assert(0);
+ break;
+
default:
assert( 0 );
}
@@ -581,6 +701,17 @@ emit_instruction(
if (indirect_temp_reference(inst))
return FALSE;
+ /*
+ * Stores and write masks are handled in a general fashion after the long
+ * instruction opcode switch statement.
+ *
+ * Although not stricitly necessary, we avoid generating instructions for
+ * channels which won't be stored, in cases where's that easy. For some
+ * complex instructions, like texture sampling, it is more convenient to
+ * assume a full writemask and then let LLVM optimization passes eliminate
+ * redundant code.
+ */
+
assert(info->num_dst <= 1);
if(info->num_dst) {
FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
@@ -865,7 +996,7 @@ emit_instruction(
src0 = emit_fetch( bld, inst, 0, chan_index );
src1 = emit_fetch( bld, inst, 1, chan_index );
src2 = emit_fetch( bld, inst, 2, chan_index );
- tmp1 = lp_build_const_scalar(bld->base.type, 0.5);
+ tmp1 = lp_build_const_vec(bld->base.type, 0.5);
tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_GREATER, src2, tmp1);
dst0[chan_index] = lp_build_select( &bld->base, tmp0, src0, src1 );
}
@@ -1126,7 +1257,6 @@ emit_instruction(
break;
case TGSI_OPCODE_TEX:
- /* XXX what about dst0 writemask? */
emit_tex( bld, inst, FALSE, FALSE, dst0 );
break;
@@ -1349,14 +1479,15 @@ emit_instruction(
case TGSI_OPCODE_TXP:
emit_tex( bld, inst, FALSE, TRUE, dst0 );
break;
-
+
case TGSI_OPCODE_BRK:
- /* FIXME */
- return 0;
+ lp_exec_break(&bld->exec_mask);
break;
case TGSI_OPCODE_IF:
tmp0 = emit_fetch(bld, inst, 0, CHAN_X);
+ tmp0 = lp_build_cmp(&bld->base, PIPE_FUNC_NOTEQUAL,
+ tmp0, bld->base.zero);
lp_exec_mask_cond_push(&bld->exec_mask, tmp0);
break;
@@ -1366,6 +1497,10 @@ emit_instruction(
return 0;
break;
+ case TGSI_OPCODE_BGNLOOP:
+ lp_exec_bgnloop(&bld->exec_mask);
+ break;
+
case TGSI_OPCODE_REP:
/* deprecated */
assert(0);
@@ -1386,6 +1521,10 @@ emit_instruction(
return 0;
break;
+ case TGSI_OPCODE_ENDLOOP:
+ lp_exec_endloop(&bld->exec_mask);
+ break;
+
case TGSI_OPCODE_ENDREP:
/* deprecated */
assert(0);
@@ -1485,8 +1624,7 @@ emit_instruction(
break;
case TGSI_OPCODE_CONT:
- /* FIXME */
- return 0;
+ lp_exec_continue(&bld->exec_mask);
break;
case TGSI_OPCODE_EMIT:
@@ -1575,7 +1713,7 @@ lp_build_tgsi_soa(LLVMBuilderRef builder,
assert(num_immediates < LP_MAX_IMMEDIATES);
for( i = 0; i < size; ++i )
bld.immediates[num_immediates][i] =
- lp_build_const_scalar(type, parse.FullToken.FullImmediate.u[i].Float);
+ lp_build_const_vec(type, parse.FullToken.FullImmediate.u[i].Float);
for( i = size; i < 4; ++i )
bld.immediates[num_immediates][i] = bld.base.undef;
num_immediates++;
@@ -1589,7 +1727,14 @@ lp_build_tgsi_soa(LLVMBuilderRef builder,
assert( 0 );
}
}
-
+ if (0) {
+ LLVMBasicBlockRef block = LLVMGetInsertBlock(builder);
+ LLVMValueRef function = LLVMGetBasicBlockParent(block);
+ debug_printf("11111111111111111111111111111 \n");
+ tgsi_dump(tokens, 0);
+ LLVMDumpValue(function);
+ debug_printf("2222222222222222222222222222 \n");
+ }
tgsi_parse_free( &parse );
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-06 21:52:05 +0000