1 files changed, 101 insertions, 0 deletions
diff --git a/test/CodeGen/X86/win-catchpad-varargs.ll b/test/CodeGen/X86/win-catchpad-varargs.ll
new file mode 100644
index 000000000000..6508f3bd7d64
--- /dev/null
+++ b/test/CodeGen/X86/win-catchpad-varargs.ll
@@ -0,0 +1,101 @@
+; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s --check-prefix=X64
+; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s --check-prefix=X86
+
+declare void @llvm.va_start(i8*)
+declare void @llvm.va_end(i8*)
+declare i32 @__CxxFrameHandler3(...)
+declare void @g()
+
+define i32 @f(i32 %a, ...) personality i32 (...)* @__CxxFrameHandler3 {
+entry:
+  %ap = alloca i8*
+  invoke void @g()
+          to label %return unwind label %catch.dispatch
+
+catch.dispatch:                                   ; preds = %entry
+  %cs1 = catchswitch within none [label %catch] unwind to caller
+
+catch:                                            ; preds = %catch.dispatch
+  %0 = catchpad within %cs1 [i8* null, i32 64, i8* null]
+  %ap1 = bitcast i8** %ap to i8*
+  call void @llvm.va_start(i8* %ap1)
+  %argp.cur = load i8*, i8** %ap
+  %1 = bitcast i8* %argp.cur to i32*
+  %arg2 = load i32, i32* %1
+  call void @llvm.va_end(i8* %ap1)
+  catchret from %0 to label %return
+
+return:                                           ; preds = %entry, %catch
+  %retval.0 = phi i32 [ %arg2, %catch ], [ -1, %entry ]
+  ret i32 %retval.0
+}
+
+; X64-LABEL: .seh_proc f
+; X64: pushq %rbp
+; X64: subq $64, %rsp
+; X64: leaq 64(%rsp), %rbp
+; X64: movq $-2, -8(%rbp)
+; X64: movl    $-1, -20(%rbp) # 4-byte Folded Spill
+; X64: callq g
+; X64: .LBB0_1
+; X64: movl    -20(%rbp), %eax # 4-byte Reload
+; X64: addq $64, %rsp
+; X64: popq %rbp
+
+; X64-LABEL: "?catch${{[0-9]}}@?0?f@4HA":
+; X64: .seh_proc "?catch${{[0-9]}}@?0?f@4HA"
+; X64:         movq    %rdx, 16(%rsp)
+; X64:         pushq   %rbp
+; X64:         subq    $32, %rsp
+; X64:         leaq    64(%rdx), %rbp
+; arg2 is at RBP+40:
+; start at arg2
+; + 8 for arg1
+; + 8 for retaddr
+; + 8 for RBP
+; + 64 for stackalloc
+; - 64 for setframe
+; = 40
+; X64:         movl    24(%rbp), %eax
+; X64:         movl    %eax, -20(%rbp)  # 4-byte Spill
+; X64:         leaq    .LBB0_1(%rip), %rax
+; X64:         addq    $32, %rsp
+; X64:         popq    %rbp
+; X64:         retq                            # CATCHRET
+
+; X86-LABEL: _f:                                     # @f
+; X86:         pushl   %ebp
+; X86:         movl    %esp, %ebp
+; X86:         pushl   %ebx
+; X86:         pushl   %edi
+; X86:         pushl   %esi
+; X86:         subl    $24, %esp
+; X86: 	       movl    $-1, -36(%ebp)
+; X86:         calll   _g
+; X86: LBB0_[[retbb:[0-9]+]]:
+; X86:         movl    -36(%ebp), %eax
+; X86:         addl    $24, %esp
+; X86:         popl    %esi
+; X86:         popl    %edi
+; X86:         popl    %ebx
+; X86:         popl    %ebp
+; X86:         retl
+
+; X86: LBB0_[[restorebb:[0-9]+]]: # Block address taken
+; X86: addl $12, %ebp
+; arg2 is at EBP offset 12:
+; + 4 for arg1
+; + 4 for retaddr
+; + 4 for EBP
+; X86: movl 12(%ebp), %eax
+; X86: movl %eax, -36(%ebp)
+; X86: jmp LBB0_[[retbb]]
+
+; X86-LABEL: "?catch${{[0-9]}}@?0?f@4HA":
+; X86:         pushl   %ebp
+; X86:         addl    $12, %ebp
+; Done due to mov %esp, %ebp
+; X86:         leal    12(%ebp), %eax
+; X86:         movl    $LBB0_[[restorebb]], %eax
+; X86:         popl    %ebp
+; X86:         retl                            # CATCHRET