re PR rtl-optimization/61926 (const-anchor optimisation is sensitive to ordering)

gcc/testsuite/
	PR rtl-optimization/61926
	* gcc.target/mips/const-anchor-1.c, gcc.target/mips/const-anchor-2.c:
	Reverse argument order.
	* gcc.target/mips/const-anchor-3.c, gcc.target/mips/const-anchor-4.c:
	New XFAILed tests that match the original order.

From-SVN: r213093

gcc/testsuite/ChangeLog

+2014-07-27  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	PR rtl-optimization/61926
+	* gcc.target/mips/const-anchor-1.c, gcc.target/mips/const-anchor-2.c:
+	Reverse argument order.
+	* gcc.target/mips/const-anchor-3.c, gcc.target/mips/const-anchor-4.c:
+	New XFAILed tests that match the original order.
+
 2014-07-26  Marek Polacek  <polacek@redhat.com>
 
 	PR c/61077

gcc/testsuite/gcc.target/mips/const-anchor-1.c

@@ -2,9 +2,9 @@
    (0x1234000) used to build another constant.  */
 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
 /* { dg-final { scan-assembler-not "0x12330000|305332224" } } */
-/* { dg-final { scan-assembler "\td?addiu\t\\\$5,\\\$\[0-9\]*,-1" } } */
+/* { dg-final { scan-assembler "\td?addiu\t\\\$4,\\\$\[0-9\]*,-1" } } */
 
 NOMIPS16 void f ()
 {
-  g (0x12340001, 0x1233ffff);
+  g (0x1233ffff, 0x12340001);
 }

gcc/testsuite/gcc.target/mips/const-anchor-2.c

 /* Derive a constant (0x30001) from another constant.  */
 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
 /* { dg-final { scan-assembler-not "0x300000|196608" } } */
-/* { dg-final { scan-assembler "\td?addiu\t\\\$5,\\\$\[0-9\]*,32763" } } */
+/* { dg-final { scan-assembler "\td?addiu\t\\\$4,\\\$\[0-9\]*,32763" } } */
 
 NOMIPS16 void f ()
 {
-  g (0x28006, 0x30001);
+  g (0x30001, 0x28006);
 }

gcc/testsuite/gcc.target/mips/const-anchor-3.c

+/* Derive a constant (0x1233ffff) from an intermediate value
+   (0x1234000) used to build another constant.  */
+/* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
+/* See PR61926 for the XFAILs.  */
+/* { dg-final { scan-assembler-not "0x12330000|305332224" { xfail *-*-* } } } */
+/* { dg-final { scan-assembler "\td?addiu\t\\\$5,\\\$\[0-9\]*,-1" { xfail *-*-* } } } */
+
+NOMIPS16 void f ()
+{
+  g (0x12340001, 0x1233ffff);
+}

gcc/testsuite/gcc.target/mips/const-anchor-4.c

+/* Derive a constant (0x30001) from another constant.  */
+/* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
+/* See PR61926 for the XFAILs.  */
+/* { dg-final { scan-assembler-not "0x300000|196608" { xfail *-*-* } } } */
+/* { dg-final { scan-assembler "\td?addiu\t\\\$5,\\\$\[0-9\]*,32763" { xfail *-*-* }  } } */
+
+NOMIPS16 void f ()
+{
+  g (0x28006, 0x30001);
+}