ac: add ac_build_isign()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index 1a245bd8e68d53b66219b7316f066e3696b6fe9b..cab8396f820dca4034960e1ab019b9967ddceb84 100644 (file)
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -1708,6 +1708,29 @@ LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0,
        return LLVMBuildFSub(ctx->builder, src0, floor, "");
 }
 
+LLVMValueRef ac_build_isign(struct ac_llvm_context *ctx, LLVMValueRef src0,
+                           unsigned bitsize)
+{
+       LLVMValueRef cmp, val, zero, one;
+       LLVMTypeRef type;
+
+       if (bitsize == 32) {
+               type = ctx->i32;
+               zero = ctx->i32_0;
+               one = ctx->i32_1;
+       } else {
+               type = ctx->i64;
+               zero = ctx->i64_0;
+               one = ctx->i64_1;
+       }
+
+       cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, src0, zero, "");
+       val = LLVMBuildSelect(ctx->builder, cmp, one, src0, "");
+       cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGE, val, zero, "");
+       val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstInt(type, -1, true), "");
+       return val;
+}
+
 void ac_get_image_intr_name(const char *base_name,
                            LLVMTypeRef data_type,
                            LLVMTypeRef coords_type,

diff --git a/src/amd/common/ac_llvm_build.h b/src/amd/common/ac_llvm_build.h
index 1a480ebbcab6da394303565a53fcfce7eaaf517d..860c25f67775c3c8e81bb73c601572ddbcd5ac8e 100644 (file)
--- a/src/amd/common/ac_llvm_build.h
+++ b/src/amd/common/ac_llvm_build.h
@@ -338,6 +338,9 @@ void ac_build_waitcnt(struct ac_llvm_context *ctx, unsigned simm16);
 LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0,
                           unsigned bitsize);
 
+LLVMValueRef ac_build_isign(struct ac_llvm_context *ctx, LLVMValueRef src0,
+                           unsigned bitsize);
+
 void ac_get_image_intr_name(const char *base_name,
                            LLVMTypeRef data_type,
                            LLVMTypeRef coords_type,

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index a2c0706102a6e34e6c9d8b9533d0a5ed416e6d5b..70198fbf208d253001c0d9c9cbc66fa0dcd0f4da 100644 (file)
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -1362,29 +1362,6 @@ static LLVMValueRef emit_fsign(struct ac_llvm_context *ctx,
        return val;
 }
 
-static LLVMValueRef emit_isign(struct ac_llvm_context *ctx,
-                              LLVMValueRef src0, unsigned bitsize)
-{
-       LLVMValueRef cmp, val, zero, one;
-       LLVMTypeRef type;
-
-       if (bitsize == 32) {
-               type = ctx->i32;
-               zero = ctx->i32_0;
-               one = ctx->i32_1;
-       } else {
-               type = ctx->i64;
-               zero = ctx->i64_0;
-               one = ctx->i64_1;
-       }
-
-       cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, src0, zero, "");
-       val = LLVMBuildSelect(ctx->builder, cmp, one, src0, "");
-       cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGE, val, zero, "");
-       val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstInt(type, -1, true), "");
-       return val;
-}
-
 static LLVMValueRef emit_uint_carry(struct ac_llvm_context *ctx,
                                    const char *intrin,
                                    LLVMValueRef src0, LLVMValueRef src1)
@@ -1807,7 +1784,8 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
                result = emit_minmax_int(&ctx->ac, LLVMIntULT, src[0], src[1]);
                break;
        case nir_op_isign:
-               result = emit_isign(&ctx->ac, src[0], instr->dest.dest.ssa.bit_size);
+               result = ac_build_isign(&ctx->ac, src[0],
+                                       instr->dest.dest.ssa.bit_size);
                break;
        case nir_op_fsign:
                src[0] = ac_to_float(&ctx->ac, src[0]);

diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c
index c9ebc90d9153cc91c0983624336e377929f7a08d..87984934cac8315224e9ff9ef4d955e10be18186 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c
@@ -353,15 +353,9 @@ static void emit_ssg(const struct lp_build_tgsi_action *action,
        LLVMValueRef cmp, val;
 
        if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_I64SSG) {
-               cmp = LLVMBuildICmp(builder, LLVMIntSGT, emit_data->args[0], bld_base->int64_bld.zero, "");
-               val = LLVMBuildSelect(builder, cmp, bld_base->int64_bld.one, emit_data->args[0], "");
-               cmp = LLVMBuildICmp(builder, LLVMIntSGE, val, bld_base->int64_bld.zero, "");
-               val = LLVMBuildSelect(builder, cmp, val, LLVMConstInt(ctx->i64, -1, true), "");
+               val = ac_build_isign(&ctx->ac, emit_data->args[0], 64);
        } else if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_ISSG) {
-               cmp = LLVMBuildICmp(builder, LLVMIntSGT, emit_data->args[0], ctx->i32_0, "");
-               val = LLVMBuildSelect(builder, cmp, ctx->i32_1, emit_data->args[0], "");
-               cmp = LLVMBuildICmp(builder, LLVMIntSGE, val, ctx->i32_0, "");
-               val = LLVMBuildSelect(builder, cmp, val, LLVMConstInt(ctx->i32, -1, true), "");
+               val = ac_build_isign(&ctx->ac, emit_data->args[0], 32);
        } else if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_DSSG) {
                cmp = LLVMBuildFCmp(builder, LLVMRealOGT, emit_data->args[0], bld_base->dbl_bld.zero, "");
                val = LLVMBuildSelect(builder, cmp, bld_base->dbl_bld.one, emit_data->args[0], "");