From: Jakub Jelinek <jakub@redhat.com>
Date: Sat, 23 Nov 2019 10:07:21 +0000 (+0100)
Subject: re PR inline-asm/92615 (ICE in extract_insn)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8d0d7a63019a7d67943d1867348673e3ca3dc824;p=gcc.git

re PR inline-asm/92615 (ICE in extract_insn)

	PR target/92615
	* config/i386/i386.c (ix86_md_asm_adjust): If dest_mode is
	GET_MODE (dest), is not QImode, using ZERO_EXTEND and dest is not
	register_operand, force x into register before storing it into dest.
	Formatting fix.

	* gcc.target/i386/pr92615.c: New test.

From-SVN: r278642
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e5741316747..eadbfc082d0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,11 @@
 2019-11-23  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/92615
+	* config/i386/i386.c (ix86_md_asm_adjust): If dest_mode is
+	GET_MODE (dest), is not QImode, using ZERO_EXTEND and dest is not
+	register_operand, force x into register before storing it into dest.
+	Formatting fix.
+
 	PR middle-end/83859
 	* doc/extend.texi (attribute access): Fix a typo.
 
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 7115ec44c2a..780ebb85ef8 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -20819,11 +20819,15 @@ ix86_md_asm_adjust (vec<rtx> &outputs, vec<rtx> &/*inputs*/,
 	    {
 	      x = force_reg (dest_mode, const0_rtx);
 
-	      emit_insn (gen_movstrictqi
-			 (gen_lowpart (QImode, x), destqi));
+	      emit_insn (gen_movstrictqi (gen_lowpart (QImode, x), destqi));
 	    }
 	  else
-	    x = gen_rtx_ZERO_EXTEND (dest_mode, destqi);
+	    {
+	      x = gen_rtx_ZERO_EXTEND (dest_mode, destqi);
+	      if (dest_mode == GET_MODE (dest)
+		  && !register_operand (dest, GET_MODE (dest)))
+		x = force_reg (dest_mode, x);
+	    }
 	}
 
       if (dest_mode != GET_MODE (dest))
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 1c8f1a00d43..db2b2ea1041 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2019-11-23  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/92615
+	* gcc.target/i386/pr92615.c: New test.
+
 	PR rtl-optimization/92610
 	* g++.dg/opt/pr92610.C: New test.
 
diff --git a/gcc/testsuite/gcc.target/i386/pr92615.c b/gcc/testsuite/gcc.target/i386/pr92615.c
new file mode 100644
index 00000000000..b84bfcdabbe
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr92615.c
@@ -0,0 +1,45 @@
+/* PR target/92615 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+void *a;
+long long b;
+char c;
+
+void
+foo (void)
+{
+  void *p;
+  long long q;
+  char r;
+  __asm__ ("" : : "r" (&p), "r" (&q), "r" (&r));
+  __asm__ ("" : "=@cca" (p));
+  a = p;
+  __asm__ ("" : "=@cca" (q));
+  b = q;
+  __asm__ ("" : "=@cca" (r));
+  c = r;
+  __asm__ ("" : : "r" (&p), "r" (&q), "r" (&r));
+}
+
+void
+bar (void)
+{
+  void *p;
+  long long q;
+  char r;
+  __asm__ ("" : "=@cca" (p));
+  a = p;
+  __asm__ ("" : "=@cca" (q));
+  b = q;
+  __asm__ ("" : "=@cca" (r));
+  c = r;
+  __asm__ ("" : : "r" (p), "A" (q), "q" (r));
+}
+
+void
+baz (void)
+{
+  void *p = (void *) &p;
+  __asm__ __volatile__ ("" : "=@ccng" (p) : "r" (1));
+}