From: Andrew Pinski <apinski@marvell.com>
Date: Fri, 30 Jul 2021 02:48:46 +0000 (-0700)
Subject: Fix PR 101683: FP exceptions for float->unsigned
X-Git-Tag: upstream/12.2.0~6038
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=99b520f031c0e491d7e170916df11dd645d60617;p=platform%2Fupstream%2Fgcc.git

Fix PR 101683: FP exceptions for float->unsigned

Just like the old bug PR9651, unsigned_fix rtl should
also be handled as a trapping instruction.

OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.

gcc/ChangeLog:

	PR rtl-optimization/101683
	* rtlanal.c (may_trap_p_1): Handle UNSIGNED_FIX.
---

diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 3b8d88a..f7f3acb 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -3261,6 +3261,7 @@ may_trap_p_1 (const_rtx x, unsigned flags)
       break;
 
     case FIX:
+    case UNSIGNED_FIX:
       /* Conversion of floating point might trap.  */
       if (flag_trapping_math && HONOR_NANS (XEXP (x, 0)))
 	return 1;