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-rw-r--r--gcc/testsuite/gcc.target/mips/fix-r4000-5.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/mips/fix-r4000-5.c b/gcc/testsuite/gcc.target/mips/fix-r4000-5.c
new file mode 100644
index 000000000..c14e949f2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/fix-r4000-5.c
@@ -0,0 +1,8 @@
+/* ??? At the moment, lower-subreg.c decomposes the copy of the multiplication
+ result to $2, which prevents the register allocators from storing the
+ multiplication result in $2. */
+/* { dg-options "-mips1 -mfix-r4000 -O2 -fno-split-wide-types -dp -EL" } */
+typedef unsigned int uint32_t;
+typedef unsigned long long uint64_t;
+uint64_t foo (uint32_t x, uint32_t y) { return (uint64_t) x * y; }
+/* { dg-final { scan-assembler "[concat {\tmultu\t\$[45],\$[45][^\n]+umulsidi3_32bit_r4000[^\n]+\n\tmflo\t\$2\n\tmfhi\t\$3\n}]" } } */