[Committed] PR target/106640: Fix use of XINT in TImode compute_convert_gain.

[Roger Sayle]

Thanks to Zdenek Sojka for reporting PR target/106640 where an RTL checking
build reveals a thinko in my recent patch to support TImode shifts/rotates
in STV.  My "senior moment" was to inappropriately use XINT where I should
be using INTVAL of XEXP.  I can't imagine what I was thinking.  Corrected
by the patch below, tested on x86_64-pc-linux-gnu with make bootstrap,
both with and without --enable-checking=rtl, and regression tested, both
with and without --target_board=unix{-m32}, with no new failures.
Committed to mainline as obvious.


2022-08-17  Roger Sayle  <ro...@nextmovesoftware.com>

gcc/ChangeLog
        PR target/106640
        * config/i386/i386-features.cc
        (timde_scalar_chain::compute_convert_gain): Replace incorrect use
        of XINT with INTVAL (XEXP (src, 1)).

Roger
--


diff --git a/gcc/config/i386/i386-features.cc b/gcc/config/i386/i386-features.cc
index 821d8c7..d6bb66c 100644
--- a/gcc/config/i386/i386-features.cc
+++ b/gcc/config/i386/i386-features.cc
@@ -1248,7 +1248,7 @@ timode_scalar_chain::compute_convert_gain ()
        case ASHIFT:
        case LSHIFTRT:
          /* See ix86_expand_v1ti_shift.  */
-         op1val = XINT (src, 1);
+         op1val = INTVAL (XEXP (src, 1));
          if (optimize_insn_for_size_p ())
            {
              if (op1val == 64 || op1val == 65)
@@ -1282,7 +1282,7 @@ timode_scalar_chain::compute_convert_gain ()
 
        case ASHIFTRT:
          /* See ix86_expand_v1ti_ashiftrt.  */
-         op1val = XINT (src, 1);
+         op1val = INTVAL (XEXP (src, 1));
          if (optimize_insn_for_size_p ())
            {
              if (op1val == 64 || op1val == 127)
@@ -1355,7 +1355,7 @@ timode_scalar_chain::compute_convert_gain ()
        case ROTATE:
        case ROTATERT:
          /* See ix86_expand_v1ti_rotate.  */
-         op1val = XINT (src, 1);
+         op1val = INTVAL (XEXP (src, 1));
          if (optimize_insn_for_size_p ())
            {
              scost = COSTS_N_BYTES (13);