| Eric Christopher | 362fee9 | 2011-06-17 20:41:29 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s |
| 2 | %0 = type { i64, i64 } |
| 3 | %1 = type { i128, i1 } |
| 4 | |
| Eric Christopher | 362fee9 | 2011-06-17 20:41:29 +0000 | [diff] [blame] | 5 | define %0 @x(i64 %a.coerce0, i64 %a.coerce1, i64 %b.coerce0, i64 %b.coerce1) nounwind uwtable ssp { |
| Eric Christopher | a307145 | 2011-06-18 00:09:57 +0000 | [diff] [blame] | 6 | ; CHECK: x |
| Eric Christopher | 362fee9 | 2011-06-17 20:41:29 +0000 | [diff] [blame] | 7 | entry: |
| 8 | %tmp16 = zext i64 %a.coerce0 to i128 |
| 9 | %tmp11 = zext i64 %a.coerce1 to i128 |
| 10 | %tmp12 = shl nuw i128 %tmp11, 64 |
| 11 | %ins14 = or i128 %tmp12, %tmp16 |
| 12 | %tmp6 = zext i64 %b.coerce0 to i128 |
| 13 | %tmp3 = zext i64 %b.coerce1 to i128 |
| 14 | %tmp4 = shl nuw i128 %tmp3, 64 |
| 15 | %ins = or i128 %tmp4, %tmp6 |
| 16 | %0 = tail call %1 @llvm.smul.with.overflow.i128(i128 %ins14, i128 %ins) |
| 17 | ; CHECK: callq ___muloti4 |
| 18 | %1 = extractvalue %1 %0, 0 |
| 19 | %2 = extractvalue %1 %0, 1 |
| 20 | br i1 %2, label %overflow, label %nooverflow |
| 21 | |
| 22 | overflow: ; preds = %entry |
| 23 | tail call void @llvm.trap() |
| 24 | unreachable |
| 25 | |
| 26 | nooverflow: ; preds = %entry |
| 27 | %tmp20 = trunc i128 %1 to i64 |
| 28 | %tmp21 = insertvalue %0 undef, i64 %tmp20, 0 |
| 29 | %tmp22 = lshr i128 %1, 64 |
| 30 | %tmp23 = trunc i128 %tmp22 to i64 |
| 31 | %tmp24 = insertvalue %0 %tmp21, i64 %tmp23, 1 |
| 32 | ret %0 %tmp24 |
| 33 | } |
| 34 | |
| Eric Christopher | a307145 | 2011-06-18 00:09:57 +0000 | [diff] [blame] | 35 | define %0 @foo(i64 %a.coerce0, i64 %a.coerce1, i64 %b.coerce0, i64 %b.coerce1) nounwind uwtable ssp { |
| 36 | entry: |
| 37 | ; CHECK: foo |
| 38 | %retval = alloca i128, align 16 |
| 39 | %coerce = alloca i128, align 16 |
| 40 | %a.addr = alloca i128, align 16 |
| 41 | %coerce1 = alloca i128, align 16 |
| 42 | %b.addr = alloca i128, align 16 |
| 43 | %0 = bitcast i128* %coerce to %0* |
| 44 | %1 = getelementptr %0* %0, i32 0, i32 0 |
| 45 | store i64 %a.coerce0, i64* %1 |
| 46 | %2 = getelementptr %0* %0, i32 0, i32 1 |
| 47 | store i64 %a.coerce1, i64* %2 |
| 48 | %a = load i128* %coerce, align 16 |
| 49 | store i128 %a, i128* %a.addr, align 16 |
| 50 | %3 = bitcast i128* %coerce1 to %0* |
| 51 | %4 = getelementptr %0* %3, i32 0, i32 0 |
| 52 | store i64 %b.coerce0, i64* %4 |
| 53 | %5 = getelementptr %0* %3, i32 0, i32 1 |
| 54 | store i64 %b.coerce1, i64* %5 |
| 55 | %b = load i128* %coerce1, align 16 |
| 56 | store i128 %b, i128* %b.addr, align 16 |
| 57 | %tmp = load i128* %a.addr, align 16 |
| 58 | %tmp2 = load i128* %b.addr, align 16 |
| 59 | %6 = call %1 @llvm.umul.with.overflow.i128(i128 %tmp, i128 %tmp2) |
| 60 | ; CHECK: cmov |
| 61 | ; CHECK: divti3 |
| 62 | %7 = extractvalue %1 %6, 0 |
| 63 | %8 = extractvalue %1 %6, 1 |
| 64 | br i1 %8, label %overflow, label %nooverflow |
| 65 | |
| 66 | overflow: ; preds = %entry |
| 67 | call void @llvm.trap() |
| 68 | unreachable |
| 69 | |
| 70 | nooverflow: ; preds = %entry |
| 71 | store i128 %7, i128* %retval |
| 72 | %9 = bitcast i128* %retval to %0* |
| 73 | %10 = load %0* %9, align 1 |
| 74 | ret %0 %10 |
| 75 | } |
| 76 | |
| 77 | declare %1 @llvm.umul.with.overflow.i128(i128, i128) nounwind readnone |
| 78 | |
| Eric Christopher | 362fee9 | 2011-06-17 20:41:29 +0000 | [diff] [blame] | 79 | declare %1 @llvm.smul.with.overflow.i128(i128, i128) nounwind readnone |
| 80 | |
| 81 | declare void @llvm.trap() nounwind |