diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.md')
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 8be86a4c15c..a0f462a99c1 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -5184,6 +5184,41 @@ "frsqrtes %0,%1" [(set_attr "type" "fp")]) +;; This expander is here to avoid FLOAT_WORDS_BIGENDIAN tests in +;; builtins.c and optabs.c that are not correct for IBM long double +;; when little-endian. +(define_expand "signbittf2" + [(set (match_dup 2) + (float_truncate:DF (match_operand:TF 1 "gpc_reg_operand" ""))) + (set (match_dup 3) + (subreg:DI (match_dup 2) 0)) + (set (match_dup 4) + (match_dup 5)) + (set (match_operand:SI 0 "gpc_reg_operand" "") + (match_dup 6))] + "!TARGET_IEEEQUAD + && TARGET_HARD_FLOAT + && (TARGET_FPRS || TARGET_E500_DOUBLE) + && TARGET_LONG_DOUBLE_128" +{ + operands[2] = gen_reg_rtx (DFmode); + operands[3] = gen_reg_rtx (DImode); + if (TARGET_POWERPC64) + { + operands[4] = gen_reg_rtx (DImode); + operands[5] = gen_rtx_LSHIFTRT (DImode, operands[3], GEN_INT (63)); + operands[6] = gen_rtx_SUBREG (SImode, operands[4], + WORDS_BIG_ENDIAN ? 4 : 0); + } + else + { + operands[4] = gen_reg_rtx (SImode); + operands[5] = gen_rtx_SUBREG (SImode, operands[3], + WORDS_BIG_ENDIAN ? 0 : 4); + operands[6] = gen_rtx_LSHIFTRT (SImode, operands[4], GEN_INT (31)); + } +}) + (define_expand "copysign<mode>3" [(set (match_dup 3) (abs:SFDF (match_operand:SFDF 1 "gpc_reg_operand" ""))) @@ -9266,8 +9301,8 @@ "&& reload_completed" [(pc)] { - const int lo_word = FLOAT_WORDS_BIG_ENDIAN ? GET_MODE_SIZE (DFmode) : 0; - const int hi_word = FLOAT_WORDS_BIG_ENDIAN ? 0 : GET_MODE_SIZE (DFmode); + const int lo_word = LONG_DOUBLE_LARGE_FIRST ? GET_MODE_SIZE (DFmode) : 0; + const int hi_word = LONG_DOUBLE_LARGE_FIRST ? 0 : GET_MODE_SIZE (DFmode); emit_move_insn (simplify_gen_subreg (DFmode, operands[0], TFmode, hi_word), operands[1]); emit_move_insn (simplify_gen_subreg (DFmode, operands[0], TFmode, lo_word), @@ -9496,8 +9531,8 @@ && TARGET_LONG_DOUBLE_128" " { - const int hi_word = FLOAT_WORDS_BIG_ENDIAN ? 0 : GET_MODE_SIZE (DFmode); - const int lo_word = FLOAT_WORDS_BIG_ENDIAN ? GET_MODE_SIZE (DFmode) : 0; + const int hi_word = LONG_DOUBLE_LARGE_FIRST ? 0 : GET_MODE_SIZE (DFmode); + const int lo_word = LONG_DOUBLE_LARGE_FIRST ? GET_MODE_SIZE (DFmode) : 0; operands[3] = gen_reg_rtx (DFmode); operands[4] = gen_reg_rtx (CCFPmode); operands[5] = simplify_gen_subreg (DFmode, operands[0], TFmode, hi_word); @@ -12885,8 +12920,8 @@ (match_dup 13)] { REAL_VALUE_TYPE rv; - const int lo_word = FLOAT_WORDS_BIG_ENDIAN ? GET_MODE_SIZE (DFmode) : 0; - const int hi_word = FLOAT_WORDS_BIG_ENDIAN ? 0 : GET_MODE_SIZE (DFmode); + const int lo_word = LONG_DOUBLE_LARGE_FIRST ? GET_MODE_SIZE (DFmode) : 0; + const int hi_word = LONG_DOUBLE_LARGE_FIRST ? 0 : GET_MODE_SIZE (DFmode); operands[5] = simplify_gen_subreg (DFmode, operands[1], TFmode, hi_word); operands[6] = simplify_gen_subreg (DFmode, operands[1], TFmode, lo_word); |