From 33006d53fd3adf2baae85b625e3ec99908b7a31c Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 16 Feb 2018 10:04:00 +0100
Subject: re PR rtl-optimization/83723 (ICE: in gen_rtx_SUBREG, at
 emit-rtl.c:1010)

	PR rtl-optimization/83723
	* lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
	* lra.c (lra_substitute_pseudo): Likewise.  If true, use
	gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
	recursive calls.
	(lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
	callers.
	* lra-constraints.c (inherit_reload_reg, split_reg): Likewise.

	* gcc.dg/pr83723.c: New test.

From-SVN: r257725
---
 gcc/testsuite/gcc.dg/pr83723.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/pr83723.c

(limited to 'gcc/testsuite/gcc.dg')

diff --git a/gcc/testsuite/gcc.dg/pr83723.c b/gcc/testsuite/gcc.dg/pr83723.c
new file mode 100644
index 0000000..a64fe9b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr83723.c
@@ -0,0 +1,20 @@
+/* PR rtl-optimization/83723 */
+/* { dg-do compile } */
+/* { dg-options "-g -O2" } */
+/* { dg-additional-options "-mfpmath=sse -msse2" { target i?86-*-* x86_64-*-* } } */
+/* { dg-additional-options "-fpie" { target pie } } */
+
+int foo (void);
+float bar (float);
+int *v;
+
+void
+baz (void)
+{
+  float a = bar (0.0);
+  bar (a);
+  if (v)
+    bar (1.0);
+  if (a < 1.0)
+    a = foo () / a;
+}
-- 
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