vec-bswap.ll
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; RUN: llc < %s -mtriple=powerpc64le-unknown-unknown -mcpu=pwr9 \
; RUN: -verify-machineinstrs -ppc-asm-full-reg-names | FileCheck %s
define dso_local void @test(i32* %Arr, i32 signext %Len) {
; CHECK-LABEL: test:
; CHECK: lxvx [[REG:vs[0-9]+]], r{{[0-9]+}}, r{{[0-9]+}}
; CHECK-NEXT: xxbrw vs{{[0-9]+}}, [[REG]]
entry:
%cmp1 = icmp slt i32 0, %Len
br i1 %cmp1, label %for.body.lr.ph, label %for.cond.cleanup
for.body.lr.ph: ; preds = %entry
%min.iters.check = icmp ult i32 %Len, 4
br i1 %min.iters.check, label %scalar.ph, label %vector.ph
vector.ph: ; preds = %for.body.lr.ph
%n.mod.vf = urem i32 %Len, 4
%n.vec = sub i32 %Len, %n.mod.vf
br label %vector.body
vector.body: ; preds = %vector.body, %vector.ph
%index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
%broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
%broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
%induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
%0 = add i32 %index, 0
%1 = sext i32 %0 to i64
%2 = getelementptr inbounds i32, i32* %Arr, i64 %1
%3 = getelementptr inbounds i32, i32* %2, i32 0
%4 = bitcast i32* %3 to <4 x i32>*
%wide.load = load <4 x i32>, <4 x i32>* %4, align 4
%5 = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %wide.load)
%6 = sext i32 %0 to i64
%7 = getelementptr inbounds i32, i32* %Arr, i64 %6
%8 = getelementptr inbounds i32, i32* %7, i32 0
%9 = bitcast i32* %8 to <4 x i32>*
store <4 x i32> %5, <4 x i32>* %9, align 4
%index.next = add i32 %index, 4
%10 = icmp eq i32 %index.next, %n.vec
br i1 %10, label %middle.block, label %vector.body
middle.block: ; preds = %vector.body
%cmp.n = icmp eq i32 %Len, %n.vec
br i1 %cmp.n, label %for.cond.for.cond.cleanup_crit_edge, label %scalar.ph
scalar.ph: ; preds = %middle.block, %for.body.lr.ph
%bc.resume.val = phi i32 [ %n.vec, %middle.block ], [ 0, %for.body.lr.ph ]
br label %for.body
for.cond.for.cond.cleanup_crit_edge: ; preds = %middle.block, %for.inc
br label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond.for.cond.cleanup_crit_edge, %entry
br label %for.end
for.body: ; preds = %for.inc, %scalar.ph
%i.02 = phi i32 [ %bc.resume.val, %scalar.ph ], [ %inc, %for.inc ]
%idxprom = sext i32 %i.02 to i64
%arrayidx = getelementptr inbounds i32, i32* %Arr, i64 %idxprom
%11 = load i32, i32* %arrayidx, align 4
%12 = call i32 @llvm.bswap.i32(i32 %11)
%idxprom1 = sext i32 %i.02 to i64
%arrayidx2 = getelementptr inbounds i32, i32* %Arr, i64 %idxprom1
store i32 %12, i32* %arrayidx2, align 4
br label %for.inc
for.inc: ; preds = %for.body
%inc = add nsw i32 %i.02, 1
%cmp = icmp slt i32 %inc, %Len
br i1 %cmp, label %for.body, label %for.cond.for.cond.cleanup_crit_edge
for.end: ; preds = %for.cond.cleanup
ret void
}
define dso_local <8 x i16> @test_halfword(<8 x i16> %a) local_unnamed_addr {
; CHECK-LABEL: test_halfword:
; CHECK: xxbrh vs34, vs34
; CHECK-NEXT: blr
entry:
%0 = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
ret <8 x i16> %0
}
define dso_local <2 x i64> @test_doubleword(<2 x i64> %a) local_unnamed_addr {
; CHECK-LABEL: test_doubleword:
; CHECK: xxbrd vs34, vs34
; CHECK-NEXT: blr
entry:
%0 = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
ret <2 x i64> %0
}
define dso_local <1 x i128> @test_quadword(<1 x i128> %a) local_unnamed_addr {
; CHECK-LABEL: test_quadword:
; CHECK: xxbrq vs34, vs34
; CHECK-NEXT: blr
entry:
%0 = call <1 x i128> @llvm.bswap.v1i128(<1 x i128> %a)
ret <1 x i128> %0
}
; Function Attrs: nounwind readnone speculatable willreturn
declare <1 x i128> @llvm.bswap.v1i128(<1 x i128>)
; Function Attrs: nounwind readnone speculatable willreturn
declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)
; Function Attrs: nounwind readnone speculatable willreturn
declare <8 x i16> @llvm.bswap.v8i16(<8 x i16>)
; Function Attrs: nounwind readnone speculatable willreturn
declare i32 @llvm.bswap.i32(i32)
; Function Attrs: nounwind readnone speculatable willreturn
declare <4 x i32> @llvm.bswap.v4i32(<4 x i32>)