ptx: add ld instruction and test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122398 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 44 insertions, 0 deletions

diff --git a/test/CodeGen/PTX/ld.ll b/test/CodeGen/PTX/ld.ll
new file mode 100644
index 0000000000..5ae82a0385
--- /dev/null
+++ b/test/CodeGen/PTX/ld.ll
@@ -0,0 +1,44 @@
+; RUN: llc < %s -march=ptx | FileCheck %s
+
+;CHECK: .extern .global .s32 array[];
+@array = external global [10 x i32]
+
+define ptx_device i32 @t1(i32* %p) {
+entry:
+;CHECK: ld.global.s32 r0, [r1];
+  %x = load i32* %p
+  ret i32 %x
+}
+
+define ptx_device i32 @t2(i32* %p) {
+entry:
+;CHECK: ld.global.s32 r0, [r1+4];
+  %i = getelementptr i32* %p, i32 1
+  %x = load i32* %i
+  ret i32 %x
+}
+
+define ptx_device i32 @t3(i32* %p, i32 %q) {
+entry:
+;CHECK: shl.b32 r0, r2, 2;
+;CHECK: ld.global.s32 r0, [r1+r0];
+  %i = getelementptr i32* %p, i32 %q
+  %x = load i32* %i
+  ret i32 %x
+}
+
+define ptx_device i32 @t4() {
+entry:
+;CHECK: ld.global.s32 r0, [array];
+  %i = getelementptr [10 x i32]* @array, i32 0, i32 0
+  %x = load i32* %i
+  ret i32 %x
+}
+
+define ptx_device i32 @t5() {
+entry:
+;CHECK: ld.global.s32 r0, [array+4];
+  %i = getelementptr [10 x i32]* @array, i32 0, i32 1
+  %x = load i32* %i
+  ret i32 %x
+}