llvm-project/llvm/test/CodeGen/LoongArch/lsx/inline-asm-operand-modifier.ll
chenli d25c79dc70 [LoongArch] Support InlineAsm for LSX and LASX
The author of the following files is licongtian <licongtian@loongson.cn>:
- clang/lib/Basic/Targets/LoongArch.cpp
- llvm/lib/Target/LoongArch/LoongArchAsmPrinter.cpp
- llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp

The files mentioned above implement InlineAsm for LSX and LASX as follows:
- Enable clang parsing LSX/LASX register name, such as $vr0.
- Support the case which operand type is 128bit or 256bit when the
  constraints is 'f'.
- Support the way of specifying LSX/LASX register by using constraint,
  such as "={$xr0}".
- Support the operand modifiers 'u' and 'w'.
- Support and legalize the data types and register classes involved in
  LSX/LASX in the lowering process.

Reviewed By: xen0n, SixWeining

Differential Revision: https://reviews.llvm.org/D154931
2023-07-25 09:02:29 +08:00

15 lines
441 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc --mtriple=loongarch64 --mattr=+lsx < %s | FileCheck %s
define void @test_w() nounwind {
; CHECK-LABEL: test_w:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: #APP
; CHECK-NEXT: vldi $vr0, 1
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: ret
entry:
%0 = tail call <2 x i64> asm sideeffect "vldi ${0:w}, 1", "=f"()
ret void
}