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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s | FileCheck %s
target triple = "aarch64-unknown-linux-gnu"
; Ensure that a no-op 'and' get removed with vector splat of 1 or ptrue with proper constant
define <vscale x 16 x i1> @fold_away_ptrue_and_ptrue() #0 {
; CHECK-LABEL: fold_away_ptrue_and_ptrue:
; CHECK: // %bb.0:
; CHECK-NEXT: ptrue p0.s
; CHECK-NEXT: ret
%1 = call <vscale x 4 x i1> @llvm.aarch64.sve.ptrue.nxv4i1(i32 31)
%2 = call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv4i1(<vscale x 4 x i1> %1)
%3 = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
%and = and <vscale x 16 x i1> %3, %2
ret <vscale x 16 x i1> %and
}
define <vscale x 16 x i1> @fold_away_ptrue_and_splat_predicate() #0 {
; CHECK-LABEL: fold_away_ptrue_and_splat_predicate:
; CHECK: // %bb.0:
; CHECK-NEXT: ptrue p0.s
; CHECK-NEXT: ret
%1 = call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv4i1(<vscale x 4 x i1> splat(i1 true))
%2 = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
%and = and <vscale x 16 x i1> %1, %2
ret <vscale x 16 x i1> %and
}
; Ensure that one AND operation remain for inactive lanes zeroing with 2 x i1 type (llvm.aarch64.sve.convert.to.svbool.nxv2i1).
define <vscale x 16 x i1> @fold_away_ptrue_and_convert_to() #0 {
; CHECK-LABEL: fold_away_ptrue_and_convert_to:
; CHECK: // %bb.0:
; CHECK-NEXT: ptrue p0.s
; CHECK-NEXT: ptrue p1.d
; CHECK-NEXT: and p0.b, p1/z, p1.b, p0.b
; CHECK-NEXT: ret
%1 = call <vscale x 4 x i1> @llvm.aarch64.sve.ptrue.nxv4i1(i32 31)
%2 = call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv4i1(<vscale x 4 x i1> %1)
%3 = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
%4 = call <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1> %3)
%5 = call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv2i1(<vscale x 2 x i1> %4)
%and = and <vscale x 16 x i1> %5, %2
ret <vscale x 16 x i1> %and
}
define <vscale x 16 x i1> @fold_away_two_similar() #0 {
; CHECK-LABEL: fold_away_two_similar:
; CHECK: // %bb.0:
; CHECK-NEXT: ptrue p0.b
; CHECK-NEXT: ret
%1 = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
%2 = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
%and = and <vscale x 16 x i1> %1, %2
ret <vscale x 16 x i1> %and
}
declare <vscale x 4 x i1> @llvm.aarch64.sve.ptrue.nxv4i1(i32 immarg)
declare <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv4i1(<vscale x 4 x i1>)
declare <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 immarg)
declare <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1>)
declare <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv2i1(<vscale x 2 x i1>)
attributes #0 = { "target-features"="+sve" }
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