1 files changed, 38 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-fast-isel-gv.ll b/test/CodeGen/AArch64/arm64-fast-isel-gv.ll
new file mode 100644
index 0000000000..dc4d8953c2
--- /dev/null
+++ b/test/CodeGen/AArch64/arm64-fast-isel-gv.ll
@@ -0,0 +1,38 @@
+; RUN: llc < %s -O0 -fast-isel-abort -mtriple=arm64-apple-darwin | FileCheck %s
+
+; Test load/store of global value from global offset table.
+@seed = common global i64 0, align 8
+
+define void @Initrand() nounwind {
+entry:
+; CHECK: @Initrand
+; CHECK: adrp x[[REG:[0-9]+]], _seed@GOTPAGE
+; CHECK: ldr x[[REG2:[0-9]+]], [x[[REG]], _seed@GOTPAGEOFF]
+; CHECK: str x{{[0-9]+}}, [x[[REG2]]]
+  store i64 74755, i64* @seed, align 8
+  ret void
+}
+
+define i32 @Rand() nounwind {
+entry:
+; CHECK: @Rand
+; CHECK: adrp x[[REG:[0-9]+]], _seed@GOTPAGE
+; CHECK: ldr x[[REG2:[0-9]+]], [x[[REG]], _seed@GOTPAGEOFF]
+; CHECK: movz x[[REG3:[0-9]+]], #0x51d
+; CHECK: ldr x[[REG4:[0-9]+]], [x[[REG2]]]
+; CHECK: mul x[[REG5:[0-9]+]], x[[REG4]], x[[REG3]]
+; CHECK: movz x[[REG6:[0-9]+]], #0x3619
+; CHECK: add x[[REG7:[0-9]+]], x[[REG5]], x[[REG6]]
+; CHECK: orr x[[REG8:[0-9]+]], xzr, #0xffff
+; CHECK: and x[[REG9:[0-9]+]], x[[REG7]], x[[REG8]]
+; CHECK: str x[[REG9]], [x[[REG]]]
+; CHECK: ldr x{{[0-9]+}}, [x[[REG]]]
+  %0 = load i64* @seed, align 8
+  %mul = mul nsw i64 %0, 1309
+  %add = add nsw i64 %mul, 13849
+  %and = and i64 %add, 65535
+  store i64 %and, i64* @seed, align 8
+  %1 = load i64* @seed, align 8
+  %conv = trunc i64 %1 to i32
+  ret i32 %conv
+}