On November 21, 2014 8:08:37 PM CET, Jakub Jelinek <ja...@redhat.com> wrote:
>Hi!
>
>Apparently, emit_cmp_and_jump_insns can silently generate wrong code
>for wider modes on some targets, so this patch changes all those calls
>in
>internal-fn.c to do_compare_rtx_and_jump, which is a wrapper around
>emit_cmp_and_jump_insns that should handle the wider mode comparison
>expansion.  Unfortunately, the order of arguments is different :(.
>
>No new testcases provided, the existing testsuite exhibited this on
>various
>targets.
>
>Bootstrapped/regtested on x86_64-linux and i686-linux, tested on the
>testcases for ia64 and Uros tested the testcases on Alpha (in both
>cases
>they previously failed), ok for trunk?

Ok.

Thanks,
Richard.

>2014-11-21  Jakub Jelinek  <ja...@redhat.com>
>
>       PR target/63848
>       PR target/63975
>       * internal-fn.c (expand_arith_overflow_result_store,
>       expand_addsub_overflow, expand_neg_overflow, expand_mul_overflow): Use
>       do_compare_rtx_and_jump instead of emit_cmp_and_jump_insns everywhere,
>       adjust arguments to those functions.  Use unsignedp = true for
>       EQ, NE, GEU, LEU, LTU and GTU comparisons.
>
>--- gcc/internal-fn.c.jj       2014-11-19 18:48:02.000000000 +0100
>+++ gcc/internal-fn.c  2014-11-21 17:34:00.634621461 +0100
>@@ -386,8 +386,8 @@ expand_arith_overflow_result_store (tree
>       int uns = TYPE_UNSIGNED (TREE_TYPE (TREE_TYPE (lhs)));
>       lres = convert_modes (tgtmode, mode, res, uns);
> gcc_assert (GET_MODE_PRECISION (tgtmode) < GET_MODE_PRECISION (mode));
>-      emit_cmp_and_jump_insns (res, convert_modes (mode, tgtmode,
>lres, uns),
>-                             EQ, NULL_RTX, mode, false, done_label,
>+      do_compare_rtx_and_jump (res, convert_modes (mode, tgtmode,
>lres, uns),
>+                             EQ, true, mode, NULL_RTX, NULL_RTX, done_label,
>                              PROB_VERY_LIKELY);
>       write_complex_part (target, const1_rtx, true);
>       emit_label (done_label);
>@@ -533,8 +533,8 @@ expand_addsub_overflow (location_t loc,
>             ? (CONST_SCALAR_INT_P (op0) && REG_P (op1))
>             : CONST_SCALAR_INT_P (op1)))
>       tem = op1;
>-      emit_cmp_and_jump_insns (res, tem, code == PLUS_EXPR ? GEU :
>LEU,
>-                             NULL_RTX, mode, false, done_label,
>+      do_compare_rtx_and_jump (res, tem, code == PLUS_EXPR ? GEU :
>LEU,
>+                             true, mode, NULL_RTX, NULL_RTX, done_label,
>                              PROB_VERY_LIKELY);
>       goto do_error_label;
>     }
>@@ -549,7 +549,7 @@ expand_addsub_overflow (location_t loc,
>       rtx tem = expand_binop (mode, add_optab,
>                             code == PLUS_EXPR ? res : op0, sgn,
>                             NULL_RTX, false, OPTAB_LIB_WIDEN);
>-      emit_cmp_and_jump_insns (tem, op1, GEU, NULL_RTX, mode, false,
>+      do_compare_rtx_and_jump (tem, op1, GEU, true, mode, NULL_RTX,
>NULL_RTX,
>                              done_label, PROB_VERY_LIKELY);
>       goto do_error_label;
>     }
>@@ -591,9 +591,9 @@ expand_addsub_overflow (location_t loc,
>       emit_jump (do_error);
>       else if (pos_neg == 3)
>       /* If ARG0 is not known to be always positive, check at runtime.  */
>-      emit_cmp_and_jump_insns (op0, const0_rtx, LT, NULL_RTX, mode, false,
>-                               do_error, PROB_VERY_UNLIKELY);
>-      emit_cmp_and_jump_insns (op1, op0, LEU, NULL_RTX, mode, false,
>+      do_compare_rtx_and_jump (op0, const0_rtx, LT, false, mode, NULL_RTX,
>+                               NULL_RTX, do_error, PROB_VERY_UNLIKELY);
>+      do_compare_rtx_and_jump (op1, op0, LEU, true, mode, NULL_RTX,
>NULL_RTX,
>                              done_label, PROB_VERY_LIKELY);
>       goto do_error_label;
>     }
>@@ -607,7 +607,7 @@ expand_addsub_overflow (location_t loc,
>                         OPTAB_LIB_WIDEN);
>    rtx tem = expand_binop (mode, add_optab, op1, sgn, NULL_RTX, false,
>                             OPTAB_LIB_WIDEN);
>-      emit_cmp_and_jump_insns (op0, tem, LTU, NULL_RTX, mode, false,
>+      do_compare_rtx_and_jump (op0, tem, LTU, true, mode, NULL_RTX,
>NULL_RTX,
>                              done_label, PROB_VERY_LIKELY);
>       goto do_error_label;
>     }
>@@ -619,8 +619,8 @@ expand_addsub_overflow (location_t loc,
>        unsigned.  */
>       res = expand_binop (mode, add_optab, op0, op1, NULL_RTX, false,
>                         OPTAB_LIB_WIDEN);
>-      emit_cmp_and_jump_insns (res, const0_rtx, LT, NULL_RTX, mode,
>false,
>-                             do_error, PROB_VERY_UNLIKELY);
>+      do_compare_rtx_and_jump (res, const0_rtx, LT, false, mode,
>NULL_RTX,
>+                             NULL_RTX, do_error, PROB_VERY_UNLIKELY);
>       rtx tem = op1;
>     /* The operation is commutative, so we can pick operand to compare
>        against.  For prec <= BITS_PER_WORD, I think preferring REG operand
>@@ -633,7 +633,7 @@ expand_addsub_overflow (location_t loc,
>         ? (CONST_SCALAR_INT_P (op1) && REG_P (op0))
>         : CONST_SCALAR_INT_P (op0))
>       tem = op0;
>-      emit_cmp_and_jump_insns (res, tem, GEU, NULL_RTX, mode, false,
>+      do_compare_rtx_and_jump (res, tem, GEU, true, mode, NULL_RTX,
>NULL_RTX,
>                              done_label, PROB_VERY_LIKELY);
>       goto do_error_label;
>     }
>@@ -663,25 +663,26 @@ expand_addsub_overflow (location_t loc,
>         tem = expand_binop (mode, ((pos_neg == 1) ^ (code == MINUS_EXPR))
>                                   ? and_optab : ior_optab,
>                             op0, res, NULL_RTX, false, OPTAB_LIB_WIDEN);
>-        emit_cmp_and_jump_insns (tem, const0_rtx, GE, NULL_RTX, mode,
>false,
>-                                 done_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                                 NULL_RTX, done_label, PROB_VERY_LIKELY);
>       }
>       else
>       {
>         rtx_code_label *do_ior_label = gen_label_rtx ();
>-        emit_cmp_and_jump_insns (op1, const0_rtx,
>-                                 code == MINUS_EXPR ? GE : LT, NULL_RTX,
>-                                 mode, false, do_ior_label, PROB_EVEN);
>+        do_compare_rtx_and_jump (op1, const0_rtx,
>+                                 code == MINUS_EXPR ? GE : LT, false, mode,
>+                                 NULL_RTX, NULL_RTX, do_ior_label,
>+                                 PROB_EVEN);
>         tem = expand_binop (mode, and_optab, op0, res, NULL_RTX, false,
>                             OPTAB_LIB_WIDEN);
>-        emit_cmp_and_jump_insns (tem, const0_rtx, GE, NULL_RTX, mode,
>false,
>-                                 done_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                                 NULL_RTX, done_label, PROB_VERY_LIKELY);
>         emit_jump (do_error);
>         emit_label (do_ior_label);
>         tem = expand_binop (mode, ior_optab, op0, res, NULL_RTX, false,
>                             OPTAB_LIB_WIDEN);
>-        emit_cmp_and_jump_insns (tem, const0_rtx, GE, NULL_RTX, mode,
>false,
>-                                 done_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                                 NULL_RTX, done_label, PROB_VERY_LIKELY);
>       }
>       goto do_error_label;
>     }
>@@ -694,14 +695,14 @@ expand_addsub_overflow (location_t loc,
>       res = expand_binop (mode, sub_optab, op0, op1, NULL_RTX, false,
>                         OPTAB_LIB_WIDEN);
>       rtx_code_label *op0_geu_op1 = gen_label_rtx ();
>-      emit_cmp_and_jump_insns (op0, op1, GEU, NULL_RTX, mode, false,
>+      do_compare_rtx_and_jump (op0, op1, GEU, true, mode, NULL_RTX,
>NULL_RTX,
>                              op0_geu_op1, PROB_EVEN);
>-      emit_cmp_and_jump_insns (res, const0_rtx, LT, NULL_RTX, mode,
>false,
>-                             done_label, PROB_VERY_LIKELY);
>+      do_compare_rtx_and_jump (res, const0_rtx, LT, false, mode,
>NULL_RTX,
>+                             NULL_RTX, done_label, PROB_VERY_LIKELY);
>       emit_jump (do_error);
>       emit_label (op0_geu_op1);
>-      emit_cmp_and_jump_insns (res, const0_rtx, GE, NULL_RTX, mode,
>false,
>-                             done_label, PROB_VERY_LIKELY);
>+      do_compare_rtx_and_jump (res, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                             NULL_RTX, done_label, PROB_VERY_LIKELY);
>       goto do_error_label;
>     }
> 
>@@ -754,7 +755,7 @@ expand_addsub_overflow (location_t loc,
>        and conditional jump instead of 2 at runtime, 3 present in the
>        emitted code.  If one of the arguments is CONST_INT, all we
>        need is to make sure it is op1, then the first
>-       emit_cmp_and_jump_insns will be just folded.  Otherwise try
>+       do_compare_rtx_and_jump will be just folded.  Otherwise try
>        to use range info if available.  */
>       if (code == PLUS_EXPR && CONST_INT_P (op0))
>       {
>@@ -779,13 +780,13 @@ expand_addsub_overflow (location_t loc,
> 
>       /* If the op1 is negative, we have to use a different check.  */
>       if (pos_neg == 3)
>-      emit_cmp_and_jump_insns (op1, const0_rtx, LT, NULL_RTX, mode,
>-                               false, sub_check, PROB_EVEN);
>+      do_compare_rtx_and_jump (op1, const0_rtx, LT, false, mode, NULL_RTX,
>+                               NULL_RTX, sub_check, PROB_EVEN);
> 
>   /* Compare the result of the operation with one of the operands.  */
>       if (pos_neg & 1)
>-      emit_cmp_and_jump_insns (res, op0, code == PLUS_EXPR ? GE : LE,
>-                               NULL_RTX, mode, false, done_label,
>+      do_compare_rtx_and_jump (res, op0, code == PLUS_EXPR ? GE : LE,
>+                               false, mode, NULL_RTX, NULL_RTX, done_label,
>                                PROB_VERY_LIKELY);
> 
>       /* If we get here, we have to print the error.  */
>@@ -798,8 +799,8 @@ expand_addsub_overflow (location_t loc,
> 
>       /* We have k = a + b for b < 0 here.  k <= a must hold.  */
>       if (pos_neg & 2)
>-      emit_cmp_and_jump_insns (res, op0, code == PLUS_EXPR ? LE : GE,
>-                               NULL_RTX, mode, false, done_label,
>+      do_compare_rtx_and_jump (res, op0, code == PLUS_EXPR ? LE : GE,
>+                               false, mode, NULL_RTX, NULL_RTX, done_label,
>                                PROB_VERY_LIKELY);
>     }
> 
>@@ -895,7 +896,7 @@ expand_neg_overflow (location_t loc, tre
> 
>       /* Compare the operand with the most negative value.  */
>       rtx minv = expand_normal (TYPE_MIN_VALUE (TREE_TYPE (arg1)));
>-      emit_cmp_and_jump_insns (op1, minv, NE, NULL_RTX, mode, false,
>+      do_compare_rtx_and_jump (op1, minv, NE, true, mode, NULL_RTX,
>NULL_RTX,
>                              done_label, PROB_VERY_LIKELY);
>     }
> 
>@@ -1031,16 +1032,16 @@ expand_mul_overflow (location_t loc, tre
>         ops.op2 = NULL_TREE;
>         ops.location = loc;
>         res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
>-        emit_cmp_and_jump_insns (op1, const0_rtx, EQ, NULL_RTX, mode,
>-                                 false, done_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (op1, const0_rtx, EQ, true, mode, NULL_RTX,
>+                                 NULL_RTX, done_label, PROB_VERY_LIKELY);
>         goto do_error_label;
>       case 3:
>         rtx_code_label *do_main_label;
>         do_main_label = gen_label_rtx ();
>-        emit_cmp_and_jump_insns (op0, const0_rtx, GE, NULL_RTX, mode,
>-                                 false, do_main_label, PROB_VERY_LIKELY);
>-        emit_cmp_and_jump_insns (op1, const0_rtx, EQ, NULL_RTX, mode,
>-                                 false, do_main_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (op0, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                                 NULL_RTX, do_main_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (op1, const0_rtx, EQ, true, mode, NULL_RTX,
>+                                 NULL_RTX, do_main_label, PROB_VERY_LIKELY);
>         write_complex_part (target, const1_rtx, true);
>         emit_label (do_main_label);
>         goto do_main;
>@@ -1076,16 +1077,16 @@ expand_mul_overflow (location_t loc, tre
>         ops.op2 = NULL_TREE;
>         ops.location = loc;
>         res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
>-        emit_cmp_and_jump_insns (op0, const0_rtx, EQ, NULL_RTX, mode,
>-                                 false, done_label, PROB_VERY_LIKELY);
>-        emit_cmp_and_jump_insns (op0, constm1_rtx, NE, NULL_RTX, mode,
>-                                 false, do_error, PROB_VERY_UNLIKELY);
>+        do_compare_rtx_and_jump (op0, const0_rtx, EQ, true, mode, NULL_RTX,
>+                                 NULL_RTX, done_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (op0, constm1_rtx, NE, true, mode,
>NULL_RTX,
>+                                 NULL_RTX, do_error, PROB_VERY_UNLIKELY);
>         int prec;
>         prec = GET_MODE_PRECISION (mode);
>         rtx sgn;
>         sgn = immed_wide_int_const (wi::min_value (prec, SIGNED), mode);
>-        emit_cmp_and_jump_insns (op1, sgn, EQ, NULL_RTX, mode,
>-                                 false, done_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (op1, sgn, EQ, true, mode, NULL_RTX,
>+                                 NULL_RTX, done_label, PROB_VERY_LIKELY);
>         goto do_error_label;
>       case 3:
>         /* Rest of handling of this case after res is computed.  */
>@@ -1130,8 +1131,9 @@ expand_mul_overflow (location_t loc, tre
>             res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
>             tem = expand_binop (mode, and_optab, op0, op1, NULL_RTX, false,
>                                 OPTAB_LIB_WIDEN);
>-            emit_cmp_and_jump_insns (tem, const0_rtx, EQ, NULL_RTX, mode,
>-                                     false, done_label, PROB_VERY_LIKELY);
>+            do_compare_rtx_and_jump (tem, const0_rtx, EQ, true, mode,
>+                                     NULL_RTX, NULL_RTX, done_label,
>+                                     PROB_VERY_LIKELY);
>             goto do_error_label;
>           }
>         /* The general case, do all the needed comparisons at runtime.  */
>@@ -1147,8 +1149,9 @@ expand_mul_overflow (location_t loc, tre
>         after_negate_label = gen_label_rtx ();
>         tem = expand_binop (mode, and_optab, op0, op1, NULL_RTX, false,
>                             OPTAB_LIB_WIDEN);
>-        emit_cmp_and_jump_insns (tem, const0_rtx, GE, NULL_RTX, mode,
>false,
>-                                 after_negate_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                                 NULL_RTX, after_negate_label,
>+                                 PROB_VERY_LIKELY);
>         /* Both arguments negative here, negate them and continue with
>            normal unsigned overflow checking multiplication.  */
>         emit_move_insn (op0, expand_unop (mode, neg_optab, op0,
>@@ -1163,14 +1166,14 @@ expand_mul_overflow (location_t loc, tre
>         emit_label (after_negate_label);
>         tem2 = expand_binop (mode, xor_optab, op0, op1, NULL_RTX, false,
>                              OPTAB_LIB_WIDEN);
>-        emit_cmp_and_jump_insns (tem2, const0_rtx, GE, NULL_RTX, mode,
>false,
>-                                 do_main_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (tem2, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                                 NULL_RTX, do_main_label, PROB_VERY_LIKELY);
>         /* One argument is negative here, the other positive.  This
>            overflows always, unless one of the arguments is 0.  But
>            if e.g. s2 is 0, (U) s1 * 0 doesn't overflow, whatever s1
>            is, thus we can keep do_main code oring in overflow as is.  */
>-        emit_cmp_and_jump_insns (tem, const0_rtx, EQ, NULL_RTX, mode,
>false,
>-                                 do_main_label, PROB_VERY_LIKELY);
>+        do_compare_rtx_and_jump (tem, const0_rtx, EQ, true, mode, NULL_RTX,
>+                                 NULL_RTX, do_main_label, PROB_VERY_LIKELY);
>         write_complex_part (target, const1_rtx, true);
>         emit_label (do_main_label);
>         goto do_main;
>@@ -1235,8 +1238,9 @@ expand_mul_overflow (location_t loc, tre
>         if (uns)
>           /* For the unsigned multiplication, there was overflow if
>              HIPART is non-zero.  */
>-          emit_cmp_and_jump_insns (hipart, const0_rtx, EQ, NULL_RTX, mode,
>-                                   false, done_label, PROB_VERY_LIKELY);
>+          do_compare_rtx_and_jump (hipart, const0_rtx, EQ, true, mode,
>+                                   NULL_RTX, NULL_RTX, done_label,
>+                                   PROB_VERY_LIKELY);
>         else
>           {
>             rtx signbit = expand_shift (RSHIFT_EXPR, mode, res, prec - 1,
>@@ -1244,8 +1248,9 @@ expand_mul_overflow (location_t loc, tre
>             /* RES is low half of the double width result, HIPART
>                the high half.  There was overflow if
>                HIPART is different from RES < 0 ? -1 : 0.  */
>-            emit_cmp_and_jump_insns (signbit, hipart, EQ, NULL_RTX, mode,
>-                                     false, done_label, PROB_VERY_LIKELY);
>+            do_compare_rtx_and_jump (signbit, hipart, EQ, true, mode,
>+                                     NULL_RTX, NULL_RTX, done_label,
>+                                     PROB_VERY_LIKELY);
>           }
>       }
>   else if (hmode != BLKmode && 2 * GET_MODE_PRECISION (hmode) == prec)
>@@ -1336,12 +1341,13 @@ expand_mul_overflow (location_t loc, tre
>           }
> 
>         if (!op0_small_p)
>-          emit_cmp_and_jump_insns (signbit0, hipart0, NE, NULL_RTX, hmode,
>-                                   false, large_op0, PROB_UNLIKELY);
>+          do_compare_rtx_and_jump (signbit0, hipart0, NE, true, hmode,
>+                                   NULL_RTX, NULL_RTX, large_op0,
>+                                   PROB_UNLIKELY);
> 
>         if (!op1_small_p)
>-          emit_cmp_and_jump_insns (signbit1, hipart1, NE, NULL_RTX, hmode,
>-                                   false, small_op0_large_op1,
>+          do_compare_rtx_and_jump (signbit1, hipart1, NE, true, hmode,
>+                                   NULL_RTX, NULL_RTX, small_op0_large_op1,
>                                    PROB_UNLIKELY);
> 
>         /* If both op0 and op1 are sign (!uns) or zero (uns) extended from
>@@ -1386,8 +1392,9 @@ expand_mul_overflow (location_t loc, tre
>         emit_label (large_op0);
> 
>         if (!op1_small_p)
>-          emit_cmp_and_jump_insns (signbit1, hipart1, NE, NULL_RTX, hmode,
>-                                   false, both_ops_large, PROB_UNLIKELY);
>+          do_compare_rtx_and_jump (signbit1, hipart1, NE, true, hmode,
>+                                   NULL_RTX, NULL_RTX, both_ops_large,
>+                                   PROB_UNLIKELY);
> 
>         /* If op1 is sign (!uns) or zero (uns) extended from hmode to mode,
>            but op0 is not, prepare larger, hipart and lopart pseudos and
>@@ -1422,8 +1429,8 @@ expand_mul_overflow (location_t loc, tre
>             if (larger_sign == 0)
>               emit_jump (after_hipart_neg);
>             else if (larger_sign != -1)
>-              emit_cmp_and_jump_insns (hipart, const0_rtx, GE, NULL_RTX,
>-                                       hmode, false, after_hipart_neg,
>+              do_compare_rtx_and_jump (hipart, const0_rtx, GE, false, hmode,
>+                                       NULL_RTX, NULL_RTX, after_hipart_neg,
>                                        PROB_EVEN);
> 
>             tem = convert_modes (mode, hmode, lopart, 1);
>@@ -1438,8 +1445,8 @@ expand_mul_overflow (location_t loc, tre
>             if (smaller_sign == 0)
>               emit_jump (after_lopart_neg);
>             else if (smaller_sign != -1)
>-              emit_cmp_and_jump_insns (lopart, const0_rtx, GE, NULL_RTX,
>-                                       hmode, false, after_lopart_neg,
>+              do_compare_rtx_and_jump (lopart, const0_rtx, GE, false, hmode,
>+                                       NULL_RTX, NULL_RTX, after_lopart_neg,
>                                        PROB_EVEN);
> 
>             tem = expand_simple_binop (mode, MINUS, loxhi, larger, NULL_RTX,
>@@ -1467,8 +1474,8 @@ expand_mul_overflow (location_t loc, tre
>                                        gen_lowpart (hmode, loxhi),
>                                        hprec - 1, NULL_RTX, 0);
> 
>-        emit_cmp_and_jump_insns (signbitloxhi, hipartloxhi, NE, NULL_RTX,
>-                                 hmode, false, do_overflow,
>+        do_compare_rtx_and_jump (signbitloxhi, hipartloxhi, NE, true,
>hmode,
>+                                 NULL_RTX, NULL_RTX, do_overflow,
>                                  PROB_VERY_UNLIKELY);
> 
>         /* res = (loxhi << (bitsize / 2)) | (hmode) lo0xlo1;  */
>@@ -1503,8 +1510,8 @@ expand_mul_overflow (location_t loc, tre
>               {
>                 tem = expand_simple_binop (hmode, PLUS, hipart0, const1_rtx,
>                                            NULL_RTX, 1, OPTAB_DIRECT);
>-                emit_cmp_and_jump_insns (tem, const1_rtx, GTU, NULL_RTX,
>-                                         hmode, true, do_error,
>+                do_compare_rtx_and_jump (tem, const1_rtx, GTU, true, hmode,
>+                                         NULL_RTX, NULL_RTX, do_error,
>                                          PROB_VERY_UNLIKELY);
>               }
> 
>@@ -1512,8 +1519,8 @@ expand_mul_overflow (location_t loc, tre
>               {
>                 tem = expand_simple_binop (hmode, PLUS, hipart1, const1_rtx,
>                                            NULL_RTX, 1, OPTAB_DIRECT);
>-                emit_cmp_and_jump_insns (tem, const1_rtx, GTU, NULL_RTX,
>-                                         hmode, true, do_error,
>+                do_compare_rtx_and_jump (tem, const1_rtx, GTU, true, hmode,
>+                                         NULL_RTX, NULL_RTX, do_error,
>                                          PROB_VERY_UNLIKELY);
>               }
> 
>@@ -1523,17 +1530,20 @@ expand_mul_overflow (location_t loc, tre
>             if (op0_sign != 1 && op1_sign != 1 && op0_sign != op1_sign)
>               emit_jump (hipart_different);
>             else if (op0_sign == 1 || op1_sign == 1)
>-              emit_cmp_and_jump_insns (hipart0, hipart1, NE, NULL_RTX, hmode,
>-                                       true, hipart_different, PROB_EVEN);
>+              do_compare_rtx_and_jump (hipart0, hipart1, NE, true, hmode,
>+                                       NULL_RTX, NULL_RTX, hipart_different,
>+                                       PROB_EVEN);
> 
>-            emit_cmp_and_jump_insns (res, const0_rtx, LT, NULL_RTX, mode,
>-                                     false, do_error, PROB_VERY_UNLIKELY);
>+            do_compare_rtx_and_jump (res, const0_rtx, LT, false, mode,
>+                                     NULL_RTX, NULL_RTX, do_error,
>+                                     PROB_VERY_UNLIKELY);
>             emit_jump (done_label);
> 
>             emit_label (hipart_different);
> 
>-            emit_cmp_and_jump_insns (res, const0_rtx, GE, NULL_RTX, mode,
>-                                     false, do_error, PROB_VERY_UNLIKELY);
>+            do_compare_rtx_and_jump (res, const0_rtx, GE, false, mode,
>+                                     NULL_RTX, NULL_RTX, do_error,
>+                                     PROB_VERY_UNLIKELY);
>             emit_jump (done_label);
>           }
> 
>@@ -1577,8 +1587,8 @@ expand_mul_overflow (location_t loc, tre
>   if (uns0_p && uns1_p && !unsr_p)
>     {
>       rtx_code_label *all_done_label = gen_label_rtx ();
>-      emit_cmp_and_jump_insns (res, const0_rtx, GE, NULL_RTX, mode,
>-                             false, all_done_label, PROB_VERY_LIKELY);
>+      do_compare_rtx_and_jump (res, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                             NULL_RTX, all_done_label, PROB_VERY_LIKELY);
>       write_complex_part (target, const1_rtx, true);
>       emit_label (all_done_label);
>     }
>@@ -1588,15 +1598,15 @@ expand_mul_overflow (location_t loc, tre
>     {
>       rtx_code_label *all_done_label = gen_label_rtx ();
>       rtx_code_label *set_noovf = gen_label_rtx ();
>-      emit_cmp_and_jump_insns (op1, const0_rtx, GE, NULL_RTX, mode,
>-                             false, all_done_label, PROB_VERY_LIKELY);
>+      do_compare_rtx_and_jump (op1, const0_rtx, GE, false, mode,
>NULL_RTX,
>+                             NULL_RTX, all_done_label, PROB_VERY_LIKELY);
>       write_complex_part (target, const1_rtx, true);
>-      emit_cmp_and_jump_insns (op0, const0_rtx, EQ, NULL_RTX, mode,
>-                             false, set_noovf, PROB_VERY_LIKELY);
>-      emit_cmp_and_jump_insns (op0, constm1_rtx, NE, NULL_RTX, mode,
>-                             false, all_done_label, PROB_VERY_UNLIKELY);
>-      emit_cmp_and_jump_insns (op1, res, NE, NULL_RTX, mode,
>-                             false, all_done_label, PROB_VERY_UNLIKELY);
>+      do_compare_rtx_and_jump (op0, const0_rtx, EQ, true, mode,
>NULL_RTX,
>+                             NULL_RTX, set_noovf, PROB_VERY_LIKELY);
>+      do_compare_rtx_and_jump (op0, constm1_rtx, NE, true, mode,
>NULL_RTX,
>+                             NULL_RTX, all_done_label, PROB_VERY_UNLIKELY);
>+      do_compare_rtx_and_jump (op1, res, NE, true, mode, NULL_RTX,
>NULL_RTX,
>+                             all_done_label, PROB_VERY_UNLIKELY);
>       emit_label (set_noovf);
>       write_complex_part (target, const0_rtx, true);
>       emit_label (all_done_label);
>
>       Jakub


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