xref: /llvm-project/llvm/test/CodeGen/M68k/Arith/mul64.ll (revision ebbc5de7db45b2fc81564a6c870a57f4b95d0477)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -mtriple=m68k-linux -verify-machineinstrs | FileCheck %s
3
4; Currenlty making the libcall is ok, x20 supports i32 mul/div which
5; yields saner expansion for i64 mul
6define i64 @foo(i64 %t, i64 %u) nounwind {
7; CHECK-LABEL: foo:
8; CHECK:       ; %bb.0:
9; CHECK-NEXT:    suba.l #20, %sp
10; CHECK-NEXT:    move.l (36,%sp), (12,%sp)
11; CHECK-NEXT:    move.l (32,%sp), (8,%sp)
12; CHECK-NEXT:    move.l (28,%sp), (4,%sp)
13; CHECK-NEXT:    move.l (24,%sp), (%sp)
14; CHECK-NEXT:    jsr __muldi3
15; CHECK-NEXT:    adda.l #20, %sp
16; CHECK-NEXT:    rts
17  %k = mul i64 %t, %u
18  ret i64 %k
19}
20