[committed] Fix expected output for various MIPS multiplication tests

The recent multiply-highpart work twiddled code generation on the MIPS targets
and is causing mips.exp failures.

The resultant code is actually better and matches a comment in the test files
which indicates that it would be better to generate a mult-highpart.  So I'm
pretty confident in removing the undesired mflo & changing the name of the
target pattern we expect to see.

This fixes the mips64 and mips64el failures in my tester.  I suspect it'll
also fix the failures on mipsisa32, but that target is bootstrapped with qemu --
which takes forever so it only runs once a week ;-)

gcc/testsuite
	* gcc.target/mips/fix-r4000-2.c: Update expected output.
	* gcc.target/mips/fix-r4000-3.c: Update expected output.  Add
	-fexpensive-optimizations for consistency in output.
	* gcc.target/mips/fix-r4000-7.c: Update expected output.
	* gcc.target/mips/fix-r4000-8.c: Update expected output.

4 files changed, 6 insertions, 14 deletions

diff --git a/gcc/testsuite/gcc.target/mips/fix-r4000-2.c b/gcc/testsuite/gcc.target/mips/fix-r4000-2.c
index 4290d5f..e0e65d6 100644
--- a/gcc/testsuite/gcc.target/mips/fix-r4000-2.c
+++ b/gcc/testsuite/gcc.target/mips/fix-r4000-2.c
@@ -4,6 +4,4 @@
 typedef int int32_t;
 typedef long long int64_t;
 NOMIPS16 int32_t foo (int32_t x, int32_t y) { return ((int64_t) x * y) >> 32; }
-/* ??? A highpart pattern would be a better choice, but we currently
-   don't use them.  */
-/* { dg-final { scan-assembler "[concat {\tmult\t\$[45],\$[45][^\n]+mulsidi3_32bit_r4000\n\tmflo\t\$3\n\tmfhi\t\$2\n}]" } } */
+/* { dg-final { scan-assembler "[concat {\tmult\t\$[45],\$[45][^\n]+smulsi3_highpart_internal\n\tmfhi\t\$2\n}]" } } */
diff --git a/gcc/testsuite/gcc.target/mips/fix-r4000-3.c b/gcc/testsuite/gcc.target/mips/fix-r4000-3.c
index 5bc8fc8..ec9d655 100644
--- a/gcc/testsuite/gcc.target/mips/fix-r4000-3.c
+++ b/gcc/testsuite/gcc.target/mips/fix-r4000-3.c
@@ -1,8 +1,6 @@
-/* { dg-options "-mips1 -mfix-r4000 -dp -EB" } */
+/* { dg-options "-mips1 -mfix-r4000 -dp -EB -fexpensive-optimizations" } */
 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
 typedef unsigned int uint32_t;
 typedef unsigned long long uint64_t;
 NOMIPS16 uint32_t foo (uint32_t x, uint32_t y) { return ((uint64_t) x * y) >> 32; }
-/* ??? A highpart pattern would be a better choice, but we currently
-   don't use them.  */
-/* { dg-final { scan-assembler "[concat {\tmultu\t\$[45],\$[45][^\n]+umulsidi3_32bit_r4000\n\tmflo\t\$3\n\tmfhi\t\$2\n}]" } } */
+/* { dg-final { scan-assembler "[concat {\tmultu\t\$[45],\$[45][^\n]+umulsi3_highpart_internal\n\tmfhi\t\$2\n}]" } } */
diff --git a/gcc/testsuite/gcc.target/mips/fix-r4000-7.c b/gcc/testsuite/gcc.target/mips/fix-r4000-7.c
index 25178db..9b10577 100644
--- a/gcc/testsuite/gcc.target/mips/fix-r4000-7.c
+++ b/gcc/testsuite/gcc.target/mips/fix-r4000-7.c
@@ -4,6 +4,4 @@
 typedef long long int64_t;
 typedef int int128_t __attribute__((mode(TI)));
 NOMIPS16 int64_t foo (int64_t x, int64_t y) { return ((int128_t) x * y) >> 64; }
-/* ??? A highpart pattern would be a better choice, but we currently
-   don't use them.  */
-/* { dg-final { scan-assembler "[concat {\tdmult\t\$[45],\$[45][^\n]+mulditi3_r4000\n\tmflo\t\$3\n\tmfhi\t\$2\n}]" } } */
+/* { dg-final { scan-assembler "[concat {\tdmult\t\$[45],\$[45][^\n]+smuldi3_highpart_internal\n\tmfhi\t\$2\n}]" } } */
diff --git a/gcc/testsuite/gcc.target/mips/fix-r4000-8.c b/gcc/testsuite/gcc.target/mips/fix-r4000-8.c
index eae1488..1ce35df 100644
--- a/gcc/testsuite/gcc.target/mips/fix-r4000-8.c
+++ b/gcc/testsuite/gcc.target/mips/fix-r4000-8.c
@@ -1,8 +1,6 @@
-/* { dg-options "-march=r4000 -mfix-r4000 -mgp64 -dp -EB" } */
+/* { dg-options "-march=r4000 -mfix-r4000 -mgp64 -dp -EB -fexpensive-optimizations" } */
 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
 typedef unsigned long long uint64_t;
 typedef unsigned int uint128_t __attribute__((mode(TI)));
 NOMIPS16 uint64_t foo (uint64_t x, uint64_t y) { return ((uint128_t) x * y) >> 64; }
-/* ??? A highpart pattern would be a better choice, but we currently
-   don't use them.  */
-/* { dg-final { scan-assembler "[concat {\tdmultu\t\$[45],\$[45][^\n]+umulditi3_r4000\n\tmflo\t\$3\n\tmfhi\t\$2\n}]" } } */
+/* { dg-final { scan-assembler "[concat {\tdmultu\t\$[45],\$[45][^\n]+umuldi3_highpart_internal\n\tmfhi\t\$2\n}]" } } */