From: Tamar Christina <tamar.christina@arm.com>
Date: Tue, 13 Dec 2022 18:01:15 +0000 (+0000)
Subject: AArch64: Fix ILP32 tbranch
X-Git-Tag: upstream/13.1.0~2564
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=69ec1e2065ac43eea44fdfa703cf027ce72a62da;p=platform%2Fupstream%2Fgcc.git

AArch64: Fix ILP32 tbranch

the baremetal builds are currently broken because the shift ends up in the wrong
representation if the mode is SImode and the shift amount if 31.   To fix this
create the rtx constant with an explicit mode so the backend passes know which
representation it needs to take.

gcc/ChangeLog:

	* config/aarch64/aarch64.md (tbranch_<code><mode>3): Use gen_int_mode.
---

diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index d749c98..6c27fb8 100644
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -957,7 +957,7 @@
 {
   rtx bitvalue = gen_reg_rtx (<ZEROM>mode);
   rtx reg = gen_lowpart (<ZEROM>mode, operands[0]);
-  rtx val = GEN_INT (1UL << UINTVAL (operands[1]));
+  rtx val = gen_int_mode (HOST_WIDE_INT_1U << UINTVAL (operands[1]), <MODE>mode);
   emit_insn (gen_and<zerom>3 (bitvalue, reg, val));
   operands[1] = const0_rtx;
   operands[0] = aarch64_gen_compare_reg (<CODE>, bitvalue,