1 files changed, 81 insertions, 0 deletions
diff --git a/test/CodeGen/X86/muloti.ll b/test/CodeGen/X86/muloti.ll
new file mode 100644
index 0000000..2f0986e
--- /dev/null
+++ b/test/CodeGen/X86/muloti.ll
@@ -0,0 +1,81 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
+%0 = type { i64, i64 }
+%1 = type { i128, i1 }
+
+define %0 @x(i64 %a.coerce0, i64 %a.coerce1, i64 %b.coerce0, i64 %b.coerce1) nounwind uwtable ssp {
+; CHECK: x
+entry:
+  %tmp16 = zext i64 %a.coerce0 to i128
+  %tmp11 = zext i64 %a.coerce1 to i128
+  %tmp12 = shl nuw i128 %tmp11, 64
+  %ins14 = or i128 %tmp12, %tmp16
+  %tmp6 = zext i64 %b.coerce0 to i128
+  %tmp3 = zext i64 %b.coerce1 to i128
+  %tmp4 = shl nuw i128 %tmp3, 64
+  %ins = or i128 %tmp4, %tmp6
+  %0 = tail call %1 @llvm.smul.with.overflow.i128(i128 %ins14, i128 %ins)
+; CHECK: callq   ___muloti4
+  %1 = extractvalue %1 %0, 0
+  %2 = extractvalue %1 %0, 1
+  br i1 %2, label %overflow, label %nooverflow
+
+overflow:                                         ; preds = %entry
+  tail call void @llvm.trap()
+  unreachable
+
+nooverflow:                                       ; preds = %entry
+  %tmp20 = trunc i128 %1 to i64
+  %tmp21 = insertvalue %0 undef, i64 %tmp20, 0
+  %tmp22 = lshr i128 %1, 64
+  %tmp23 = trunc i128 %tmp22 to i64
+  %tmp24 = insertvalue %0 %tmp21, i64 %tmp23, 1
+  ret %0 %tmp24
+}
+
+define %0 @foo(i64 %a.coerce0, i64 %a.coerce1, i64 %b.coerce0, i64 %b.coerce1) nounwind uwtable ssp {
+entry:
+; CHECK: foo
+  %retval = alloca i128, align 16
+  %coerce = alloca i128, align 16
+  %a.addr = alloca i128, align 16
+  %coerce1 = alloca i128, align 16
+  %b.addr = alloca i128, align 16
+  %0 = bitcast i128* %coerce to %0*
+  %1 = getelementptr %0* %0, i32 0, i32 0
+  store i64 %a.coerce0, i64* %1
+  %2 = getelementptr %0* %0, i32 0, i32 1
+  store i64 %a.coerce1, i64* %2
+  %a = load i128* %coerce, align 16
+  store i128 %a, i128* %a.addr, align 16
+  %3 = bitcast i128* %coerce1 to %0*
+  %4 = getelementptr %0* %3, i32 0, i32 0
+  store i64 %b.coerce0, i64* %4
+  %5 = getelementptr %0* %3, i32 0, i32 1
+  store i64 %b.coerce1, i64* %5
+  %b = load i128* %coerce1, align 16
+  store i128 %b, i128* %b.addr, align 16
+  %tmp = load i128* %a.addr, align 16
+  %tmp2 = load i128* %b.addr, align 16
+  %6 = call %1 @llvm.umul.with.overflow.i128(i128 %tmp, i128 %tmp2)
+; CHECK: cmov
+; CHECK: divti3
+  %7 = extractvalue %1 %6, 0
+  %8 = extractvalue %1 %6, 1
+  br i1 %8, label %overflow, label %nooverflow
+
+overflow:                                         ; preds = %entry
+  call void @llvm.trap()
+  unreachable
+
+nooverflow:                                       ; preds = %entry
+  store i128 %7, i128* %retval
+  %9 = bitcast i128* %retval to %0*
+  %10 = load %0* %9, align 1
+  ret %0 %10
+}
+
+declare %1 @llvm.umul.with.overflow.i128(i128, i128) nounwind readnone
+
+declare %1 @llvm.smul.with.overflow.i128(i128, i128) nounwind readnone
+
+declare void @llvm.trap() nounwind