[mips] Add patterns for DSP indexed load instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178408 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 31 insertions, 0 deletions

diff --git a/test/CodeGen/Mips/dsp-patterns.ll b/test/CodeGen/Mips/dsp-patterns.ll
new file mode 100644
index 0000000000..0752f69c3e
--- /dev/null
+++ b/test/CodeGen/Mips/dsp-patterns.ll
@@ -0,0 +1,31 @@
+; RUN: llc -march=mips -mattr=dsp < %s | FileCheck %s
+
+; CHECK: test_lbux:
+; CHECK: lbux ${{[0-9]+}}
+
+define zeroext i8 @test_lbux(i8* nocapture %b, i32 %i) {
+entry:
+  %add.ptr = getelementptr inbounds i8* %b, i32 %i
+  %0 = load i8* %add.ptr, align 1
+  ret i8 %0
+}
+
+; CHECK: test_lhx:
+; CHECK: lhx ${{[0-9]+}}
+
+define signext i16 @test_lhx(i16* nocapture %b, i32 %i) {
+entry:
+  %add.ptr = getelementptr inbounds i16* %b, i32 %i
+  %0 = load i16* %add.ptr, align 2
+  ret i16 %0
+}
+
+; CHECK: test_lwx:
+; CHECK: lwx ${{[0-9]+}}
+
+define i32 @test_lwx(i32* nocapture %b, i32 %i) {
+entry:
+  %add.ptr = getelementptr inbounds i32* %b, i32 %i
+  %0 = load i32* %add.ptr, align 4
+  ret i32 %0
+}