From eb67f09048dfc3181f6183a203971ef71cb39fb0 Mon Sep 17 00:00:00 2001 From: Ulrich Weigand Date: Fri, 17 Dec 2010 14:10:02 +0000 Subject: [PATCH] t-spu-elf (LIB2FUNCS_EXCLUDE): Add _floattisf and _floatunstisf. * config/spu/t-spu-elf (LIB2FUNCS_EXCLUDE): Add _floattisf and _floatunstisf. * config/spu/spu.md ("floattisf2"): New expander. ("floatunstisf2"): New insn pattern and splitter. ("cgt_ti_m1"): New insn pattern. From-SVN: r167984 --- gcc/ChangeLog | 8 +++++ gcc/config/spu/spu.md | 74 ++++++++++++++++++++++++++++++++++++++++ gcc/config/spu/t-spu-elf | 4 +-- 3 files changed, 84 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8aab810bd61..864cc639514 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2010-12-17 Ulrich Weigand + + * config/spu/t-spu-elf (LIB2FUNCS_EXCLUDE): Add _floattisf and + _floatunstisf. + * config/spu/spu.md ("floattisf2"): New expander. + ("floatunstisf2"): New insn pattern and splitter. + ("cgt_ti_m1"): New insn pattern. + 2010-12-17 Bernd Schmidt * config/arm/arm.c (arm_select_cc_mode): Before calling diff --git a/gcc/config/spu/spu.md b/gcc/config/spu/spu.md index 528a07cfd03..c9bf3c828d5 100644 --- a/gcc/config/spu/spu.md +++ b/gcc/config/spu/spu.md @@ -753,6 +753,73 @@ DONE; }) +(define_expand "floattisf2" + [(set (match_operand:SF 0 "register_operand" "") + (float:SF (match_operand:TI 1 "register_operand" "")))] + "" + { + rtx c0 = gen_reg_rtx (SImode); + rtx r0 = gen_reg_rtx (TImode); + rtx r1 = gen_reg_rtx (SFmode); + rtx r2 = gen_reg_rtx (SImode); + rtx setneg = gen_reg_rtx (SImode); + rtx isneg = gen_reg_rtx (SImode); + rtx neg = gen_reg_rtx (TImode); + rtx mask = gen_reg_rtx (TImode); + + emit_move_insn (c0, GEN_INT (-0x80000000ll)); + + emit_insn (gen_negti2 (neg, operands[1])); + emit_insn (gen_cgt_ti_m1 (isneg, operands[1])); + emit_insn (gen_extend_compare (mask, isneg)); + emit_insn (gen_selb (r0, neg, operands[1], mask)); + emit_insn (gen_andc_si (setneg, c0, isneg)); + + emit_insn (gen_floatunstisf2 (r1, r0)); + + emit_insn (gen_iorsi3 (r2, gen_rtx_SUBREG (SImode, r1, 0), setneg)); + emit_move_insn (operands[0], gen_rtx_SUBREG (SFmode, r2, 0)); + DONE; + }) + +(define_insn_and_split "floatunstisf2" + [(set (match_operand:SF 0 "register_operand" "=r") + (unsigned_float:SF (match_operand:TI 1 "register_operand" "r"))) + (clobber (match_scratch:SF 2 "=r")) + (clobber (match_scratch:SF 3 "=r")) + (clobber (match_scratch:SF 4 "=r"))] + "" + "#" + "reload_completed" + [(set (match_dup:SF 0) + (unsigned_float:SF (match_dup:TI 1)))] + { + rtx op1_v4si = gen_rtx_REG (V4SImode, REGNO (operands[1])); + rtx op2_v4sf = gen_rtx_REG (V4SFmode, REGNO (operands[2])); + rtx op2_ti = gen_rtx_REG (TImode, REGNO (operands[2])); + rtx op3_ti = gen_rtx_REG (TImode, REGNO (operands[3])); + + REAL_VALUE_TYPE scale; + real_2expN (&scale, 32, SFmode); + + emit_insn (gen_floatunsv4siv4sf2 (op2_v4sf, op1_v4si)); + emit_insn (gen_shlqby_ti (op3_ti, op2_ti, GEN_INT (4))); + + emit_move_insn (operands[4], + CONST_DOUBLE_FROM_REAL_VALUE (scale, SFmode)); + emit_insn (gen_fmasf4 (operands[2], + operands[2], operands[4], operands[3])); + + emit_insn (gen_shlqby_ti (op3_ti, op3_ti, GEN_INT (4))); + emit_insn (gen_fmasf4 (operands[2], + operands[2], operands[4], operands[3])); + + emit_insn (gen_shlqby_ti (op3_ti, op3_ti, GEN_INT (4))); + emit_insn (gen_fmasf4 (operands[0], + operands[2], operands[4], operands[3])); + DONE; + }) + ;; Do (double)(operands[1]+0x80000000u)-(double)0x80000000 (define_expand "floatsidf2" [(set (match_operand:DF 0 "register_operand" "") @@ -3218,6 +3285,13 @@ DONE; }) +(define_insn "cgt_ti_m1" + [(set (match_operand:SI 0 "spu_reg_operand" "=r") + (gt:SI (match_operand:TI 1 "spu_reg_operand" "r") + (const_int -1)))] + "" + "cgti\t%0,%1,-1") + (define_insn "cgt_ti" [(set (match_operand:SI 0 "spu_reg_operand" "=r") (gt:SI (match_operand:TI 1 "spu_reg_operand" "r") diff --git a/gcc/config/spu/t-spu-elf b/gcc/config/spu/t-spu-elf index 341a5aadee3..a131f64883b 100644 --- a/gcc/config/spu/t-spu-elf +++ b/gcc/config/spu/t-spu-elf @@ -26,8 +26,8 @@ TARGET_LIBGCC2_CFLAGS = -fPIC -mwarn-reloc -D__IN_LIBGCC2 # We exclude those because the libgcc2.c default versions do not support # the SPU single-precision format (round towards zero). We provide our -# own versions below. -LIB2FUNCS_EXCLUDE = _floatdisf _floatundisf +# own versions below and/or via direct expansion. +LIB2FUNCS_EXCLUDE = _floatdisf _floatundisf _floattisf _floatunstisf # We provide our own version of __divdf3 that performs better and has # better support for non-default rounding modes.