[WebAssembly] Add tests for negative offsets with global variable addresses.

llvm-svn: 258693

diff --git a/llvm/test/CodeGen/WebAssembly/offset-folding.ll b/llvm/test/CodeGen/WebAssembly/offset-folding.ll
index 59c0557..863549f 100644 (file)
--- a/llvm/test/CodeGen/WebAssembly/offset-folding.ll
+++ b/llvm/test/CodeGen/WebAssembly/offset-folding.ll
@@ -43,3 +43,21 @@ define i32* @test2() {
 define i32* @test3() {
   ret i32* getelementptr ([50 x i32], [50 x i32]* @y, i32 0, i32 0)
 }
+
+; Test negative offsets.
+
+; CHECK-LABEL: test4:
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: i32.const $push0=, x-188{{$}}
+; CHECK=NEXT: return $pop0{{$}}
+define i32* @test4() {
+  ret i32* getelementptr ([0 x i32], [0 x i32]* @x, i32 0, i32 -47)
+}
+
+; CHECK-LABEL: test5:
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: i32.const $push0=, y-188{{$}}
+; CHECK=NEXT: return $pop0{{$}}
+define i32* @test5() {
+  ret i32* getelementptr ([50 x i32], [50 x i32]* @y, i32 0, i32 -47)
+}