From 79471161e20d612cb3a6c2956543cf434091be7d Mon Sep 17 00:00:00 2001 From: nobled Date: Thu, 5 Aug 2010 15:43:20 +0000 Subject: [PATCH] gallivm: Always use floating-point operators for floating-point types XXX: This patch causes regressions in lp_test_format and lp_test_conv and probably just regressions in general. There's apparently a massive reliance on integer math being used on actually floating point values? This fixes the assert added in LLVM 2.8 (although the requirement dates to 2.6): assert(getType()->isIntOrIntVectorTy() && "Tried to create an integer operation on a non-integer type!") http://bugs.freedesktop.org/29407 --- src/gallium/auxiliary/gallivm/lp_bld_arit.c | 169 ++++++++++++--------- src/gallium/auxiliary/gallivm/lp_bld_conv.c | 24 +++- src/gallium/auxiliary/gallivm/lp_bld_format_aos.c | 4 +- 3 files changed, 120 insertions(+), 77 deletions(-) diff --git a/src/gallium/auxiliary/gallivm/lp_bld_arit.c b/src/gallium/auxiliary/gallivm/lp_bld_arit.c index f5f2623..67c0d1b 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_arit.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_arit.c @@ -173,9 +173,15 @@ lp_build_comp(struct lp_build_context *bld, } if(LLVMIsConstant(a)) - return LLVMConstSub(bld->one, a); + if (type.floating) + return LLVMConstFSub(bld->one, a); + else + return LLVMConstSub(bld->one, a); else - return LLVMBuildSub(bld->builder, bld->one, a, ""); + if (type.floating) + return LLVMBuildFSub(bld->builder, bld->one, a, ""); + else + return LLVMBuildSub(bld->builder, bld->one, a, ""); } @@ -217,9 +223,15 @@ lp_build_add(struct lp_build_context *bld, } if(LLVMIsConstant(a) && LLVMIsConstant(b)) - res = LLVMConstAdd(a, b); + if (type.floating) + res = LLVMConstFAdd(a, b); + else + res = LLVMConstAdd(a, b); else - res = LLVMBuildAdd(bld->builder, a, b, ""); + if (type.floating) + res = LLVMBuildFAdd(bld->builder, a, b, ""); + else + res = LLVMBuildAdd(bld->builder, a, b, ""); /* clamp to ceiling of 1.0 */ if(bld->type.norm && (bld->type.floating || bld->type.fixed)) @@ -253,9 +265,16 @@ lp_build_sum_vector(struct lp_build_context *bld, for (i = 1; i < type.length; i++) { index = LLVMConstInt(LLVMInt32Type(), i, 0); - res = LLVMBuildAdd(bld->builder, res, - LLVMBuildExtractElement(bld->builder, a, index, ""), - ""); + if (type.floating) + res = LLVMBuildFAdd(bld->builder, res, + LLVMBuildExtractElement(bld->builder, + a, index, ""), + ""); + else + res = LLVMBuildAdd(bld->builder, res, + LLVMBuildExtractElement(bld->builder, + a, index, ""), + ""); } return res; @@ -300,9 +319,15 @@ lp_build_sub(struct lp_build_context *bld, } if(LLVMIsConstant(a) && LLVMIsConstant(b)) - res = LLVMConstSub(a, b); + if (type.floating) + res = LLVMConstFSub(a, b); + else + res = LLVMConstSub(a, b); else - res = LLVMBuildSub(bld->builder, a, b, ""); + if (type.floating) + res = LLVMBuildFSub(bld->builder, a, b, ""); + else + res = LLVMBuildSub(bld->builder, a, b, ""); if(bld->type.norm && (bld->type.floating || bld->type.fixed)) res = lp_build_max_simple(bld, res, bld->zero); @@ -433,7 +458,10 @@ lp_build_mul(struct lp_build_context *bld, shift = NULL; if(LLVMIsConstant(a) && LLVMIsConstant(b)) { - res = LLVMConstMul(a, b); + if (type.floating) + res = LLVMConstFMul(a, b); + else + res = LLVMConstMul(a, b); if(shift) { if(type.sign) res = LLVMConstAShr(res, shift); @@ -442,7 +470,10 @@ lp_build_mul(struct lp_build_context *bld, } } else { - res = LLVMBuildMul(bld->builder, a, b, ""); + if (type.floating) + res = LLVMBuildFMul(bld->builder, a, b, ""); + else + res = LLVMBuildMul(bld->builder, a, b, ""); if(shift) { if(type.sign) res = LLVMBuildAShr(bld->builder, res, shift, ""); @@ -1021,7 +1052,7 @@ lp_build_iround(struct lp_build_context *bld, half = LLVMBuildOr(bld->builder, sign, half, ""); half = LLVMBuildBitCast(bld->builder, half, vec_type, ""); - res = LLVMBuildAdd(bld->builder, a, half, ""); + res = LLVMBuildFAdd(bld->builder, a, half, ""); } res = LLVMBuildFPToSI(bld->builder, res, int_vec_type, ""); @@ -1070,7 +1101,7 @@ lp_build_ifloor(struct lp_build_context *bld, offset = LLVMBuildAnd(bld->builder, offset, sign, ""); offset = LLVMBuildBitCast(bld->builder, offset, vec_type, "ifloor.offset"); - res = LLVMBuildAdd(bld->builder, a, offset, "ifloor.res"); + res = LLVMBuildFAdd(bld->builder, a, offset, "ifloor.res"); } /* round to nearest (toward zero) */ @@ -1120,7 +1151,7 @@ lp_build_iceil(struct lp_build_context *bld, offset = LLVMBuildAnd(bld->builder, offset, sign, ""); offset = LLVMBuildBitCast(bld->builder, offset, vec_type, "iceil.offset"); - res = LLVMBuildAdd(bld->builder, a, offset, "iceil.res"); + res = LLVMBuildFAdd(bld->builder, a, offset, "iceil.res"); } /* round to nearest (toward zero) */ @@ -1185,9 +1216,9 @@ lp_build_rcp(struct lp_build_context *bld, rcp_a = lp_build_intrinsic_unary(bld->builder, "llvm.x86.sse.rcp.ps", lp_build_vec_type(type), a); - res = LLVMBuildMul(bld->builder, a, rcp_a, ""); - res = LLVMBuildSub(bld->builder, two, res, ""); - res = LLVMBuildMul(bld->builder, res, rcp_a, ""); + res = LLVMBuildFMul(bld->builder, a, rcp_a, ""); + res = LLVMBuildFSub(bld->builder, two, res, ""); + res = LLVMBuildFMul(bld->builder, res, rcp_a, ""); return rcp_a; #else @@ -1270,7 +1301,7 @@ lp_build_sin(struct lp_build_context *bld, */ LLVMValueRef FOPi = lp_build_const_v4sf(1.27323954473516); - LLVMValueRef scale_y = LLVMBuildMul(b, x_abs, FOPi, "scale_y"); + LLVMValueRef scale_y = LLVMBuildFMul(b, x_abs, FOPi, "scale_y"); /* * store the integer part of y in mm0 @@ -1344,9 +1375,9 @@ lp_build_sin(struct lp_build_context *bld, * xmm2 = _mm_mul_ps(y, xmm2); * xmm3 = _mm_mul_ps(y, xmm3); */ - LLVMValueRef xmm1 = LLVMBuildMul(b, y_2, DP1, "xmm1"); - LLVMValueRef xmm2 = LLVMBuildMul(b, y_2, DP2, "xmm2"); - LLVMValueRef xmm3 = LLVMBuildMul(b, y_2, DP3, "xmm3"); + LLVMValueRef xmm1 = LLVMBuildFMul(b, y_2, DP1, "xmm1"); + LLVMValueRef xmm2 = LLVMBuildFMul(b, y_2, DP2, "xmm2"); + LLVMValueRef xmm3 = LLVMBuildFMul(b, y_2, DP3, "xmm3"); /* * x = _mm_add_ps(x, xmm1); @@ -1354,16 +1385,16 @@ lp_build_sin(struct lp_build_context *bld, * x = _mm_add_ps(x, xmm3); */ - LLVMValueRef x_1 = LLVMBuildAdd(b, x_abs, xmm1, "x_1"); - LLVMValueRef x_2 = LLVMBuildAdd(b, x_1, xmm2, "x_2"); - LLVMValueRef x_3 = LLVMBuildAdd(b, x_2, xmm3, "x_3"); + LLVMValueRef x_1 = LLVMBuildFAdd(b, x_abs, xmm1, "x_1"); + LLVMValueRef x_2 = LLVMBuildFAdd(b, x_1, xmm2, "x_2"); + LLVMValueRef x_3 = LLVMBuildFAdd(b, x_2, xmm3, "x_3"); /* * Evaluate the first polynom (0 <= x <= Pi/4) * * z = _mm_mul_ps(x,x); */ - LLVMValueRef z = LLVMBuildMul(b, x_3, x_3, "z"); + LLVMValueRef z = LLVMBuildFMul(b, x_3, x_3, "z"); /* * _PS_CONST(coscof_p0, 2.443315711809948E-005); @@ -1378,12 +1409,12 @@ lp_build_sin(struct lp_build_context *bld, * y = *(v4sf*)_ps_coscof_p0; * y = _mm_mul_ps(y, z); */ - LLVMValueRef y_3 = LLVMBuildMul(b, z, coscof_p0, "y_3"); - LLVMValueRef y_4 = LLVMBuildAdd(b, y_3, coscof_p1, "y_4"); - LLVMValueRef y_5 = LLVMBuildMul(b, y_4, z, "y_5"); - LLVMValueRef y_6 = LLVMBuildAdd(b, y_5, coscof_p2, "y_6"); - LLVMValueRef y_7 = LLVMBuildMul(b, y_6, z, "y_7"); - LLVMValueRef y_8 = LLVMBuildMul(b, y_7, z, "y_8"); + LLVMValueRef y_3 = LLVMBuildFMul(b, z, coscof_p0, "y_3"); + LLVMValueRef y_4 = LLVMBuildFAdd(b, y_3, coscof_p1, "y_4"); + LLVMValueRef y_5 = LLVMBuildFMul(b, y_4, z, "y_5"); + LLVMValueRef y_6 = LLVMBuildFAdd(b, y_5, coscof_p2, "y_6"); + LLVMValueRef y_7 = LLVMBuildFMul(b, y_6, z, "y_7"); + LLVMValueRef y_8 = LLVMBuildFMul(b, y_7, z, "y_8"); /* @@ -1392,10 +1423,10 @@ lp_build_sin(struct lp_build_context *bld, * y = _mm_add_ps(y, *(v4sf*)_ps_1); */ LLVMValueRef half = lp_build_const_v4sf(0.5); - LLVMValueRef tmp = LLVMBuildMul(b, z, half, "tmp"); - LLVMValueRef y_9 = LLVMBuildSub(b, y_8, tmp, "y_8"); + LLVMValueRef tmp = LLVMBuildFMul(b, z, half, "tmp"); + LLVMValueRef y_9 = LLVMBuildFSub(b, y_8, tmp, "y_8"); LLVMValueRef one = lp_build_const_v4sf(1.0); - LLVMValueRef y_10 = LLVMBuildAdd(b, y_9, one, "y_9"); + LLVMValueRef y_10 = LLVMBuildFAdd(b, y_9, one, "y_9"); /* * _PS_CONST(sincof_p0, -1.9515295891E-4); @@ -1419,13 +1450,13 @@ lp_build_sin(struct lp_build_context *bld, * y2 = _mm_add_ps(y2, x); */ - LLVMValueRef y2_3 = LLVMBuildMul(b, z, sincof_p0, "y2_3"); - LLVMValueRef y2_4 = LLVMBuildAdd(b, y2_3, sincof_p1, "y2_4"); - LLVMValueRef y2_5 = LLVMBuildMul(b, y2_4, z, "y2_5"); - LLVMValueRef y2_6 = LLVMBuildAdd(b, y2_5, sincof_p2, "y2_6"); - LLVMValueRef y2_7 = LLVMBuildMul(b, y2_6, z, "y2_7"); - LLVMValueRef y2_8 = LLVMBuildMul(b, y2_7, x_3, "y2_8"); - LLVMValueRef y2_9 = LLVMBuildAdd(b, y2_8, x_3, "y2_9"); + LLVMValueRef y2_3 = LLVMBuildFMul(b, z, sincof_p0, "y2_3"); + LLVMValueRef y2_4 = LLVMBuildFAdd(b, y2_3, sincof_p1, "y2_4"); + LLVMValueRef y2_5 = LLVMBuildFMul(b, y2_4, z, "y2_5"); + LLVMValueRef y2_6 = LLVMBuildFAdd(b, y2_5, sincof_p2, "y2_6"); + LLVMValueRef y2_7 = LLVMBuildFMul(b, y2_6, z, "y2_7"); + LLVMValueRef y2_8 = LLVMBuildFMul(b, y2_7, x_3, "y2_8"); + LLVMValueRef y2_9 = LLVMBuildFAdd(b, y2_8, x_3, "y2_9"); /* * select the correct result from the two polynoms @@ -1481,7 +1512,7 @@ lp_build_cos(struct lp_build_context *bld, */ LLVMValueRef FOPi = lp_build_const_v4sf(1.27323954473516); - LLVMValueRef scale_y = LLVMBuildMul(b, x_abs, FOPi, "scale_y"); + LLVMValueRef scale_y = LLVMBuildFMul(b, x_abs, FOPi, "scale_y"); /* * store the integer part of y in mm0 @@ -1561,9 +1592,9 @@ lp_build_cos(struct lp_build_context *bld, * xmm2 = _mm_mul_ps(y, xmm2); * xmm3 = _mm_mul_ps(y, xmm3); */ - LLVMValueRef xmm1 = LLVMBuildMul(b, y_2, DP1, "xmm1"); - LLVMValueRef xmm2 = LLVMBuildMul(b, y_2, DP2, "xmm2"); - LLVMValueRef xmm3 = LLVMBuildMul(b, y_2, DP3, "xmm3"); + LLVMValueRef xmm1 = LLVMBuildFMul(b, y_2, DP1, "xmm1"); + LLVMValueRef xmm2 = LLVMBuildFMul(b, y_2, DP2, "xmm2"); + LLVMValueRef xmm3 = LLVMBuildFMul(b, y_2, DP3, "xmm3"); /* * x = _mm_add_ps(x, xmm1); @@ -1571,16 +1602,16 @@ lp_build_cos(struct lp_build_context *bld, * x = _mm_add_ps(x, xmm3); */ - LLVMValueRef x_1 = LLVMBuildAdd(b, x_abs, xmm1, "x_1"); - LLVMValueRef x_2 = LLVMBuildAdd(b, x_1, xmm2, "x_2"); - LLVMValueRef x_3 = LLVMBuildAdd(b, x_2, xmm3, "x_3"); + LLVMValueRef x_1 = LLVMBuildFAdd(b, x_abs, xmm1, "x_1"); + LLVMValueRef x_2 = LLVMBuildFAdd(b, x_1, xmm2, "x_2"); + LLVMValueRef x_3 = LLVMBuildFAdd(b, x_2, xmm3, "x_3"); /* * Evaluate the first polynom (0 <= x <= Pi/4) * * z = _mm_mul_ps(x,x); */ - LLVMValueRef z = LLVMBuildMul(b, x_3, x_3, "z"); + LLVMValueRef z = LLVMBuildFMul(b, x_3, x_3, "z"); /* * _PS_CONST(coscof_p0, 2.443315711809948E-005); @@ -1595,12 +1626,12 @@ lp_build_cos(struct lp_build_context *bld, * y = *(v4sf*)_ps_coscof_p0; * y = _mm_mul_ps(y, z); */ - LLVMValueRef y_3 = LLVMBuildMul(b, z, coscof_p0, "y_3"); - LLVMValueRef y_4 = LLVMBuildAdd(b, y_3, coscof_p1, "y_4"); - LLVMValueRef y_5 = LLVMBuildMul(b, y_4, z, "y_5"); - LLVMValueRef y_6 = LLVMBuildAdd(b, y_5, coscof_p2, "y_6"); - LLVMValueRef y_7 = LLVMBuildMul(b, y_6, z, "y_7"); - LLVMValueRef y_8 = LLVMBuildMul(b, y_7, z, "y_8"); + LLVMValueRef y_3 = LLVMBuildFMul(b, z, coscof_p0, "y_3"); + LLVMValueRef y_4 = LLVMBuildFAdd(b, y_3, coscof_p1, "y_4"); + LLVMValueRef y_5 = LLVMBuildFMul(b, y_4, z, "y_5"); + LLVMValueRef y_6 = LLVMBuildFAdd(b, y_5, coscof_p2, "y_6"); + LLVMValueRef y_7 = LLVMBuildFMul(b, y_6, z, "y_7"); + LLVMValueRef y_8 = LLVMBuildFMul(b, y_7, z, "y_8"); /* @@ -1609,10 +1640,10 @@ lp_build_cos(struct lp_build_context *bld, * y = _mm_add_ps(y, *(v4sf*)_ps_1); */ LLVMValueRef half = lp_build_const_v4sf(0.5); - LLVMValueRef tmp = LLVMBuildMul(b, z, half, "tmp"); - LLVMValueRef y_9 = LLVMBuildSub(b, y_8, tmp, "y_8"); + LLVMValueRef tmp = LLVMBuildFMul(b, z, half, "tmp"); + LLVMValueRef y_9 = LLVMBuildFSub(b, y_8, tmp, "y_8"); LLVMValueRef one = lp_build_const_v4sf(1.0); - LLVMValueRef y_10 = LLVMBuildAdd(b, y_9, one, "y_9"); + LLVMValueRef y_10 = LLVMBuildFAdd(b, y_9, one, "y_9"); /* * _PS_CONST(sincof_p0, -1.9515295891E-4); @@ -1636,13 +1667,13 @@ lp_build_cos(struct lp_build_context *bld, * y2 = _mm_add_ps(y2, x); */ - LLVMValueRef y2_3 = LLVMBuildMul(b, z, sincof_p0, "y2_3"); - LLVMValueRef y2_4 = LLVMBuildAdd(b, y2_3, sincof_p1, "y2_4"); - LLVMValueRef y2_5 = LLVMBuildMul(b, y2_4, z, "y2_5"); - LLVMValueRef y2_6 = LLVMBuildAdd(b, y2_5, sincof_p2, "y2_6"); - LLVMValueRef y2_7 = LLVMBuildMul(b, y2_6, z, "y2_7"); - LLVMValueRef y2_8 = LLVMBuildMul(b, y2_7, x_3, "y2_8"); - LLVMValueRef y2_9 = LLVMBuildAdd(b, y2_8, x_3, "y2_9"); + LLVMValueRef y2_3 = LLVMBuildFMul(b, z, sincof_p0, "y2_3"); + LLVMValueRef y2_4 = LLVMBuildFAdd(b, y2_3, sincof_p1, "y2_4"); + LLVMValueRef y2_5 = LLVMBuildFMul(b, y2_4, z, "y2_5"); + LLVMValueRef y2_6 = LLVMBuildFAdd(b, y2_5, sincof_p2, "y2_6"); + LLVMValueRef y2_7 = LLVMBuildFMul(b, y2_6, z, "y2_7"); + LLVMValueRef y2_8 = LLVMBuildFMul(b, y2_7, x_3, "y2_8"); + LLVMValueRef y2_9 = LLVMBuildFAdd(b, y2_8, x_3, "y2_9"); /* * select the correct result from the two polynoms @@ -1817,7 +1848,7 @@ lp_build_exp2_approx(struct lp_build_context *bld, ipart = lp_build_floor(bld, x); /* fpart = x - ipart */ - fpart = LLVMBuildSub(bld->builder, x, ipart, ""); + fpart = LLVMBuildFSub(bld->builder, x, ipart, ""); } if(p_exp2_int_part || p_exp2) { @@ -1832,7 +1863,7 @@ lp_build_exp2_approx(struct lp_build_context *bld, expfpart = lp_build_polynomial(bld, fpart, lp_build_exp2_polynomial, Elements(lp_build_exp2_polynomial)); - res = LLVMBuildMul(bld->builder, expipart, expfpart, ""); + res = LLVMBuildFMul(bld->builder, expipart, expfpart, ""); } if(p_exp2_int_part) @@ -1945,9 +1976,9 @@ lp_build_log2_approx(struct lp_build_context *bld, Elements(lp_build_log2_polynomial)); /* This effectively increases the polynomial degree by one, but ensures that log2(1) == 0*/ - logmant = LLVMBuildMul(bld->builder, logmant, LLVMBuildSub(bld->builder, mant, bld->one, ""), ""); + logmant = LLVMBuildFMul(bld->builder, logmant, LLVMBuildFSub(bld->builder, mant, bld->one, ""), ""); - res = LLVMBuildAdd(bld->builder, logmant, logexp, ""); + res = LLVMBuildFAdd(bld->builder, logmant, logexp, ""); } if(p_exp) { diff --git a/src/gallium/auxiliary/gallivm/lp_bld_conv.c b/src/gallium/auxiliary/gallivm/lp_bld_conv.c index 77012f1..16859f0 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_conv.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_conv.c @@ -117,8 +117,14 @@ lp_build_clamped_float_to_unsigned_norm(LLVMBuilderRef builder, scale = (double)mask/ubound; bias = (double)((unsigned long long)1 << (mantissa - n)); - res = LLVMBuildMul(builder, src, lp_build_const_vec(src_type, scale), ""); - res = LLVMBuildAdd(builder, res, lp_build_const_vec(src_type, bias), ""); + if (src_type.floating) { + res = LLVMBuildFMul(builder, src, lp_build_const_vec(src_type, scale), ""); + res = LLVMBuildFAdd(builder, res, lp_build_const_vec(src_type, bias), ""); + } + else { + res = LLVMBuildMul(builder, src, lp_build_const_vec(src_type, scale), ""); + res = LLVMBuildAdd(builder, res, lp_build_const_vec(src_type, bias), ""); + } res = LLVMBuildBitCast(builder, res, int_vec_type, ""); if(dst_width > n) { @@ -199,8 +205,14 @@ lp_build_unsigned_norm_to_float(LLVMBuilderRef builder, res = LLVMBuildBitCast(builder, res, vec_type, ""); - res = LLVMBuildSub(builder, res, bias_, ""); - res = LLVMBuildMul(builder, res, lp_build_const_vec(dst_type, scale), ""); + if (dst_type.floating) { + res = LLVMBuildFSub(builder, res, bias_, ""); + res = LLVMBuildFMul(builder, res, lp_build_const_vec(dst_type, scale), ""); + } + else { + res = LLVMBuildSub(builder, res, bias_, ""); + res = LLVMBuildMul(builder, res, lp_build_const_vec(dst_type, scale), ""); + } return res; } @@ -296,7 +308,7 @@ lp_build_conv(LLVMBuilderRef builder, if (dst_scale != 1.0) { LLVMValueRef scale = lp_build_const_vec(tmp_type, dst_scale); for(i = 0; i < num_tmps; ++i) - tmp[i] = LLVMBuildMul(builder, tmp[i], scale, ""); + tmp[i] = LLVMBuildFMul(builder, tmp[i], scale, ""); } /* Use an equally sized integer for intermediate computations */ @@ -391,7 +403,7 @@ lp_build_conv(LLVMBuilderRef builder, if (src_scale != 1.0) { LLVMValueRef scale = lp_build_const_vec(tmp_type, 1.0/src_scale); for(i = 0; i < num_tmps; ++i) - tmp[i] = LLVMBuildMul(builder, tmp[i], scale, ""); + tmp[i] = LLVMBuildFMul(builder, tmp[i], scale, ""); } } } diff --git a/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c b/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c index 0f01fc1..247cb83 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c @@ -240,7 +240,7 @@ lp_build_unpack_arith_rgba_aos(LLVMBuilderRef builder, */ if (normalized) - scaled = LLVMBuildMul(builder, casted, LLVMConstVector(scales, 4), ""); + scaled = LLVMBuildFMul(builder, casted, LLVMConstVector(scales, 4), ""); else scaled = casted; @@ -322,7 +322,7 @@ lp_build_pack_rgba_aos(LLVMBuilderRef builder, } if (normalized) - scaled = LLVMBuildMul(builder, unswizzled, LLVMConstVector(scales, 4), ""); + scaled = LLVMBuildFMul(builder, unswizzled, LLVMConstVector(scales, 4), ""); else scaled = unswizzled; -- 1.5.4.3