1 files changed, 49 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/const-mult.ll b/test/CodeGen/Mips/const-mult.ll
new file mode 100644
index 0000000000000..8c0cbe3396b75
--- /dev/null
+++ b/test/CodeGen/Mips/const-mult.ll
@@ -0,0 +1,49 @@
+; RUN: llc -march=mipsel < %s | FileCheck %s -check-prefix=CHECK
+; RUN: llc -march=mips64el -mcpu=mips64 < %s | FileCheck %s -check-prefix=CHECK
+; RUN: llc -march=mips64el -mcpu=mips64 < %s | FileCheck %s -check-prefix=CHECK64
+
+; CHECK-LABEL: mul5_32:
+; CHECK: sll $[[R0:[0-9]+]], $4, 2
+; CHECK: addu ${{[0-9]+}}, $[[R0]], $4
+
+define i32 @mul5_32(i32 %a) {
+entry:
+  %mul = mul nsw i32 %a, 5
+  ret i32 %mul
+}
+
+; CHECK-LABEL:     mul27_32:
+; CHECK-DAG: sll $[[R0:[0-9]+]], $4, 2
+; CHECK-DAG: addu $[[R1:[0-9]+]], $[[R0]], $4
+; CHECK-DAG: sll $[[R2:[0-9]+]], $4, 5
+; CHECK:     subu ${{[0-9]+}}, $[[R2]], $[[R1]]
+
+define i32 @mul27_32(i32 %a) {
+entry:
+  %mul = mul nsw i32 %a, 27
+  ret i32 %mul
+}
+
+; CHECK-LABEL:     muln2147483643_32:
+; CHECK-DAG: sll $[[R0:[0-9]+]], $4, 2
+; CHECK-DAG: addu $[[R1:[0-9]+]], $[[R0]], $4
+; CHECK-DAG: sll $[[R2:[0-9]+]], $4, 31
+; CHECK:     addu ${{[0-9]+}}, $[[R2]], $[[R1]]
+
+define i32 @muln2147483643_32(i32 %a) {
+entry:
+  %mul = mul nsw i32 %a, -2147483643
+  ret i32 %mul
+}
+
+; CHECK64-LABEL:     muln9223372036854775805_64:
+; CHECK64-DAG: dsll $[[R0:[0-9]+]], $4, 1
+; CHECK64-DAG: daddu $[[R1:[0-9]+]], $[[R0]], $4
+; CHECK64-DAG: dsll $[[R2:[0-9]+]], $4, 63
+; CHECK64:     daddu ${{[0-9]+}}, $[[R2]], $[[R1]]
+
+define i64 @muln9223372036854775805_64(i64 %a) {
+entry:
+  %mul = mul nsw i64 %a, -9223372036854775805
+  ret i64 %mul
+}