• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s
2; Test that UMULO works correctly on 64-bit operands.
3target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
4target triple = "wasm32-unknown-unknown"
5
6; CHECK-LABEL: _ZN4core3num21_$LT$impl$u20$u64$GT$15overflowing_mul17h07be88b4cbac028fE:
7; CHECK:     __multi3
8; Function Attrs: inlinehint
9define void @"_ZN4core3num21_$LT$impl$u20$u64$GT$15overflowing_mul17h07be88b4cbac028fE"(i64, i64) unnamed_addr #0 {
10start:
11  %2 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %0, i64 %1)
12  %3 = extractvalue { i64, i1 } %2, 0
13  store i64 %3, i64* undef
14  unreachable
15}
16
17; Function Attrs: nounwind readnone speculatable
18declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #1
19
20attributes #0 = { inlinehint }
21attributes #1 = { nounwind readnone speculatable }
22
23; CHECK-LABEL: wut:
24; CHECK: call     __multi3, $2, $0, $pop0, $1, $pop7
25; CHECK: i64.load $0=, 8($2)
26define i1 @wut(i64, i64) {
27start:
28  %2 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %0, i64 %1)
29  %3 = extractvalue { i64, i1 } %2, 1
30  ret i1 %3
31}
32
33