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| author | kan <kan@FreeBSD.org> | 2002-09-01 20:38:57 +0000 |
|---|---|---|
| committer | kan <kan@FreeBSD.org> | 2002-09-01 20:38:57 +0000 |
| commit | 2e25f3a6c57335cba50111faceb0ce2ab59e9bcb (patch) | |
| tree | c6857d31c36dbd89a881b0229bf38b062797d413 /contrib/gcc/optabs.c | |
| parent | 0895e1acb698e05d503c26bec5471de2e88b7d93 (diff) | |
| download | FreeBSD-src-2e25f3a6c57335cba50111faceb0ce2ab59e9bcb.zip FreeBSD-src-2e25f3a6c57335cba50111faceb0ce2ab59e9bcb.tar.gz | |
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
Diffstat (limited to 'contrib/gcc/optabs.c')
| -rw-r--r-- | contrib/gcc/optabs.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/contrib/gcc/optabs.c b/contrib/gcc/optabs.c index 7249ffa..d228e58 100644 --- a/contrib/gcc/optabs.c +++ b/contrib/gcc/optabs.c @@ -1192,9 +1192,9 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods) { int i; optab otheroptab = binoptab == add_optab ? sub_optab : add_optab; - unsigned int nwords = GET_MODE_BITSIZE (mode) / BITS_PER_WORD; + int nwords = GET_MODE_BITSIZE (mode) / BITS_PER_WORD; rtx carry_in = NULL_RTX, carry_out = NULL_RTX; - rtx xop0, xop1; + rtx xop0, xop1, xtarget; /* We can handle either a 1 or -1 value for the carry. If STORE_FLAG value is one of those, use it. Otherwise, use 1 since it is the @@ -1209,19 +1209,20 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods) xop0 = force_reg (mode, op0); xop1 = force_reg (mode, op1); - if (target == 0 || GET_CODE (target) != REG - || target == xop0 || target == xop1) - target = gen_reg_rtx (mode); + xtarget = gen_reg_rtx (mode); + + if (target == 0 || GET_CODE (target) != REG) + target = xtarget; /* Indicate for flow that the entire target reg is being set. */ if (GET_CODE (target) == REG) - emit_insn (gen_rtx_CLOBBER (VOIDmode, target)); + emit_insn (gen_rtx_CLOBBER (VOIDmode, xtarget)); /* Do the actual arithmetic. */ for (i = 0; i < nwords; i++) { int index = (WORDS_BIG_ENDIAN ? nwords - i - 1 : i); - rtx target_piece = operand_subword (target, index, 1, mode); + rtx target_piece = operand_subword (xtarget, index, 1, mode); rtx op0_piece = operand_subword_force (xop0, index, mode); rtx op1_piece = operand_subword_force (xop1, index, mode); rtx x; @@ -1281,7 +1282,7 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods) { if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing) { - rtx temp = emit_move_insn (target, target); + rtx temp = emit_move_insn (target, xtarget); set_unique_reg_note (temp, REG_EQUAL, @@ -1443,6 +1444,9 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods) rtx temp = expand_binop (word_mode, binoptab, op0_low, op1_xhigh, NULL_RTX, 0, OPTAB_DIRECT); + if (!REG_P (product_high)) + product_high = force_reg (word_mode, product_high); + if (temp != 0) temp = expand_binop (word_mode, add_optab, temp, product_high, product_high, 0, next_methods); @@ -1462,6 +1466,8 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods) if (temp != 0 && temp != product_high) emit_move_insn (product_high, temp); + emit_move_insn (operand_subword (product, high, 1, mode), product_high); + if (temp != 0) { if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing) |
