d25c79dc70
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
59 lines
1.7 KiB
LLVM
59 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc --mtriple=loongarch64 --mattr=+lsx < %s | FileCheck %s
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define void @register_vr1() nounwind {
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; CHECK-LABEL: register_vr1:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: #APP
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; CHECK-NEXT: vldi $vr1, 1
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: ret
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entry:
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%0 = tail call <2 x i64> asm sideeffect "vldi ${0:w}, 1", "={$vr1}"()
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ret void
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}
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define void @register_vr7() nounwind {
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; CHECK-LABEL: register_vr7:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: #APP
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; CHECK-NEXT: vldi $vr7, 1
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: ret
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entry:
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%0 = tail call <2 x i64> asm sideeffect "vldi ${0:w}, 1", "={$vr7}"()
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ret void
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}
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define void @register_vr23() nounwind {
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; CHECK-LABEL: register_vr23:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: #APP
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; CHECK-NEXT: vldi $vr23, 1
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: ret
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entry:
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%0 = tail call <2 x i64> asm sideeffect "vldi ${0:w}, 1", "={$vr23}"()
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ret void
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}
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;; The lower half of the vector register '$vr31' is overlapped with
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;; the floating-point register '$f31'. And '$f31' is a callee-saved
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;; register which is preserved across calls. That's why the
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;; fst.d and fld.d instructions are emitted.
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define void @register_vr31() nounwind {
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; CHECK-LABEL: register_vr31:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: addi.d $sp, $sp, -16
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; CHECK-NEXT: fst.d $fs7, $sp, 8 # 8-byte Folded Spill
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; CHECK-NEXT: #APP
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; CHECK-NEXT: vldi $vr31, 1
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: fld.d $fs7, $sp, 8 # 8-byte Folded Reload
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; CHECK-NEXT: addi.d $sp, $sp, 16
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; CHECK-NEXT: ret
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entry:
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%0 = tail call <2 x i64> asm sideeffect "vldi ${0:w}, 1", "={$vr31}"()
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ret void
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}
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