vendor/llvm/llvm-trunk-r178860

1 files changed, 29 insertions, 0 deletions

diff --git a/test/CodeGen/X86/x86-64-ptr-arg-simple.ll b/test/CodeGen/X86/x86-64-ptr-arg-simple.ll
new file mode 100644
index 000000000000..6d466639890b
--- /dev/null
+++ b/test/CodeGen/X86/x86-64-ptr-arg-simple.ll
@@ -0,0 +1,29 @@
+; RUN: llc -mtriple=x86_64-pc-linux < %s | FileCheck %s
+; RUN: llc -mtriple=x86_64-pc-linux-gnux32 < %s | FileCheck -check-prefix=X32ABI %s
+
+; %in is kept in %esi for both ABIs. But the pointer will be passed in %edi
+; for x32, not %rdi
+
+; CHECK: movl %esi, (%rdi)
+; X32ABI: movl %esi, (%edi)
+
+define void @foo(i32* nocapture %out, i32 %in) nounwind {
+entry:
+  store i32 %in, i32* %out, align 4
+  ret void
+}
+
+; CHECK: bar
+; CHECK: movl (%rsi), %eax
+
+; Similarly here, but for loading
+; X32ABI: bar
+; X32ABI: movl (%esi), %eax
+
+define void @bar(i32* nocapture %pOut, i32* nocapture %pIn) nounwind {
+entry:
+  %0 = load i32* %pIn, align 4
+  store i32 %0, i32* %pOut, align 4
+  ret void
+}
+