* expr.c (expand_expr_real_1): <MAX_EXPR, MIN_EXPR>: Canonicalize

	to compare against 0 when possible.
	* gcc.target/i386/minmax-1.c: New.
	* gcc.target/i386/minmax-2.c: New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@106827 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/minmax-2.c b/gcc/testsuite/gcc.target/i386/minmax-2.c
new file mode 100644
index 00000000000..2021aaa0777
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/minmax-2.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler "test" } } */
+/* { dg-final { scan-assembler-not "cmp" } } */
+#define max(a,b) (((a) > (b))? (a) : (b))
+t(unsigned int a)
+{
+  return (max(a,1));
+}