From: Uros Bizjak <ubizjak@gmail.com>
Date: Tue, 26 Mar 2019 18:59:14 +0000 (+0100)
Subject: re PR target/89827 (ICE: in convert_op, at config/i386/i386.c:2098 with -Os -maes)
X-Git-Tag: basepoints/gcc-10~441
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a48d7fa69843ab586f553a3d7d8a3546cc617692;p=thirdparty%2Fgcc.git

re PR target/89827 (ICE: in convert_op, at config/i386/i386.c:2098 with -Os -maes)

	PR target/89827
	* config/i386/i386.c (dimode_scalar_chain::convert_reg):
	Also process XEXP (src, 0) of a shift insn.

testsuite/ChangeLog:

	PR target/89827
	* gcc.target/i386/pr89827.c: New test.

From-SVN: r269953
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 48e4c86943fe..c83f88a94938 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-03-26  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/89827
+	* config/i386/i386.c (dimode_scalar_chain::convert_reg):
+	Also process XEXP (src, 0) of a shift insn.
+
 2019-03-26  Richard Biener  <rguenther@suse.de>
 
 	* tree-inline.c (remap_gimple_stmt): Cache gimple_block.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index b5f20f1597ed..3ea545732dfd 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -2040,6 +2040,7 @@ dimode_scalar_chain::convert_reg (unsigned regno)
 
 		emit_insn_before (seq, insn);
 
+		XEXP (src, 0) = replace_with_subreg (XEXP (src, 0), reg, reg);
 		XEXP (src, 1) = gen_rtx_SUBREG (DImode, tmp2, 0);
 	      }
 	    else if (!MEM_P (dst) || !REG_P (src))
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 16bfddf5acc7..2048487d876e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-03-26  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/89827
+	* gcc.target/i386/pr89827.c: New test.
+
 2019-03-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* g++.dg/abi/lambda-static-1.C: Handle Solaris as comdat group
diff --git a/gcc/testsuite/gcc.target/i386/pr89827.c b/gcc/testsuite/gcc.target/i386/pr89827.c
new file mode 100644
index 000000000000..c6fb48b54b98
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr89827.c
@@ -0,0 +1,11 @@
+/* PR target/89827 */
+/* { dg-do compile { target ia32 } } */
+/* { dg-options "-O2 -msse2 -mstv -mno-stackrealign" } */
+
+unsigned long long a;
+
+void
+foo (void)
+{
+  a >>= (unsigned short) a;
+}