forked from OSchip/llvm-project
38 lines
1.2 KiB
LLVM
38 lines
1.2 KiB
LLVM
; 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
|
|
}
|
|
|
|
declare %1 @llvm.smul.with.overflow.i128(i128, i128) nounwind readnone
|
|
|
|
declare void @llvm.trap() nounwind
|