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llvm-mirror/test/CodeGen/M68k/Arith/imul-neg.ll
Min-Yih Hsu 33b1222ec6 [M68k][test](6/8) Add all of the tests
And a small utilities -- extract-section.py -- that helps extracting
specific object file section and printing in textual format. This
utility is just a workaround for tests inside `Encoding`. Hopefully in
the future we can replace dependencies in those tests with existing tools
(e.g. llvm-readobj). Please refer to this bug for more context:
https://bugs.llvm.org/show_bug.cgi?id=49245

Note that since we don't have AsmParser for now, we are testing the MC
part using MIR as input and put those tests under the `Encoding` folder.
In the future when AsmParser (and disassembler) is finished, those tests
will be moved to `test/MC/M68k`.

Authors: myhsu, m4yers, glaubitz

Differential Revision: https://reviews.llvm.org/D88392
2021-03-08 12:30:57 -08:00

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936 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=m68k-linux | FileCheck %s
; FIXME: When using SelectionDAGISel, the following cases use
; `sub` rather than the expected `neg`
define i32 @mul4294967295_32(i32 %A) {
; CHECK-LABEL: mul4294967295_32:
; CHECK: .cfi_startproc
; CHECK-NEXT: ; %bb.0:
; CHECK-NEXT: move.l #0, %d0
; CHECK-NEXT: sub.l (4,%sp), %d0
; CHECK-NEXT: rts
%mul = mul i32 %A, 4294967295
ret i32 %mul
}
; NOTE: If returning a 64-bit integer, d0 will be the higher 32-bit!
define i64 @mul18446744073709551615_64(i64 %A) {
; CHECK-LABEL: mul18446744073709551615_64:
; CHECK: .cfi_startproc
; CHECK-NEXT: ; %bb.0:
; CHECK-NEXT: move.l (4,%sp), %d0
; CHECK-NEXT: move.l #0, %d1
; CHECK-NEXT: sub.l (8,%sp), %d1
; CHECK-NEXT: negx.l %d0
; CHECK-NEXT: rts
%mul = mul i64 %A, 18446744073709551615
ret i64 %mul
}