From: Alan Modra <amodra@gmail.com>
Date: Thu, 19 Jan 2017 23:21:53 +0000 (+1030)
Subject: [RS6000] Don't expand strcmp and strncmp inline when -Os
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=945a01f92138e0887ac258c7979392fb4661aa97;p=gcc.git

[RS6000] Don't expand strcmp and strncmp inline when -Os

	* config/rs6000/rs6000.md (cmpstrnsi, cmpstrsi): Fail if
	optimizing for size.

From-SVN: r244660
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 33eb1298100..d231ff49d5b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-01-20  Alan Modra  <amodra@gmail.com>
+
+	* config/rs6000/rs6000.md (cmpstrnsi, cmpstrsi): Fail if
+	optimizing for size.
+
 2017-01-20  Alan Modra  <amodra@gmail.com>
 
 	PR target/79144
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 9ef3b11d12a..3f292211463 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -9102,6 +9102,9 @@
 	      (use (match_operand:SI 4))])]
   "TARGET_CMPB && (BYTES_BIG_ENDIAN || TARGET_LDBRX)"
 {
+  if (optimize_insn_for_size_p ())
+    FAIL;
+
   if (expand_strn_compare (operands, 0))
     DONE;
   else	
@@ -9121,6 +9124,9 @@
 	      (use (match_operand:SI 3))])]
   "TARGET_CMPB && (BYTES_BIG_ENDIAN || TARGET_LDBRX)"
 {
+  if (optimize_insn_for_size_p ())
+    FAIL;
+
   if (expand_strn_compare (operands, 1))
     DONE;
   else