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| author | Jakub Jelinek <jakub@redhat.com> | 2014-02-06 22:54:21 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2014-02-06 22:54:21 +0100 |
| commit | 47d552eb018f0ccd92a5d0c38a79ff702b4f1b70 (patch) | |
| tree | 1ad8acb219a7c1a5747f7a617239862981e10f5b /gcc/internal-fn.c | |
| parent | 45c75ea7f14555859d41f8141eae669bdbe84f89 (diff) | |
| download | gcc-47d552eb018f0ccd92a5d0c38a79ff702b4f1b70.zip gcc-47d552eb018f0ccd92a5d0c38a79ff702b4f1b70.tar.gz gcc-47d552eb018f0ccd92a5d0c38a79ff702b4f1b70.tar.bz2 | |
re PR rtl-optimization/60030 (ICE in simplify_subreg, at simplify-rtx.c:5903)
PR rtl-optimization/60030
* internal-fn.c (ubsan_expand_si_overflow_mul_check): Surround
lopart with paradoxical subreg before shifting it up by hprec.
From-SVN: r207582
Diffstat (limited to 'gcc/internal-fn.c')
| -rw-r--r-- | gcc/internal-fn.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c index 3efd2b1..568a96b 100644 --- a/gcc/internal-fn.c +++ b/gcc/internal-fn.c @@ -646,7 +646,8 @@ ubsan_expand_si_overflow_mul_check (gimple stmt) emit_cmp_and_jump_insns (hipart, const0_rtx, GE, NULL_RTX, hmode, false, after_hipart_neg, PROB_EVEN); - tem = expand_shift (LSHIFT_EXPR, mode, lopart, hprec, NULL_RTX, 1); + tem = convert_modes (mode, hmode, lopart, 1); + tem = expand_shift (LSHIFT_EXPR, mode, tem, hprec, NULL_RTX, 1); tem = expand_simple_binop (mode, MINUS, loxhi, tem, NULL_RTX, 1, OPTAB_DIRECT); emit_move_insn (loxhi, tem); |