112 lines
4.6 KiB
LLVM
112 lines
4.6 KiB
LLVM
; RUN: opt < %s -scalable-vectorization=on -force-target-supports-scalable-vectors=true -loop-vectorize -force-vector-width=2 -force-vector-interleave=2 -S | FileCheck %s
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define void @test1(float* noalias nocapture %a, float* noalias nocapture readonly %b) {
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; CHECK-LABEL: @test1(
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; CHECK: vector.body:
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; CHECK: [[FCMP1:%.*]] = fcmp ogt <vscale x 2 x float>
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; CHECK-NEXT: [[FCMP2:%.*]] = fcmp ogt <vscale x 2 x float>
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; CHECK-NEXT: [[FCMP1L0:%.*]] = extractelement <vscale x 2 x i1> [[FCMP1]], i32 0
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; CHECK-NEXT: tail call void @llvm.assume(i1 [[FCMP1L0]])
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; CHECK-NEXT: [[FCMP2L0:%.*]] = extractelement <vscale x 2 x i1> [[FCMP2]], i32 0
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; CHECK-NEXT: tail call void @llvm.assume(i1 [[FCMP2L0]])
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv
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%0 = load float, float* %arrayidx, align 4
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%cmp1 = fcmp ogt float %0, 1.000000e+02
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tail call void @llvm.assume(i1 %cmp1)
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%add = fadd float %0, 1.000000e+00
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%arrayidx5 = getelementptr inbounds float, float* %a, i64 %indvars.iv
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store float %add, float* %arrayidx5, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv, 1599
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br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
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for.end: ; preds = %for.body
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ret void
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}
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declare void @llvm.assume(i1) #0
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attributes #0 = { nounwind willreturn }
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%struct.data = type { float*, float* }
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define void @test2(float *%a, float *%b) {
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; CHECK-LABEL: @test2(
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; CHECK: entry:
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; CHECK: [[MASKCOND:%.*]] = icmp eq i64 %ptrint1, 0
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; CHECK: [[MASKCOND4:%.*]] = icmp eq i64 %ptrint2, 0
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; CHECK: vector.body:
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; CHECK: tail call void @llvm.assume(i1 [[MASKCOND]])
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; CHECK-NEXT: tail call void @llvm.assume(i1 [[MASKCOND]])
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; CHECK: tail call void @llvm.assume(i1 [[MASKCOND4]])
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; CHECK-NEXT: tail call void @llvm.assume(i1 [[MASKCOND4]])
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entry:
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%ptrint1 = ptrtoint float* %a to i64
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%maskcond = icmp eq i64 %ptrint1, 0
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%ptrint2 = ptrtoint float* %b to i64
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%maskcond4 = icmp eq i64 %ptrint2, 0
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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tail call void @llvm.assume(i1 %maskcond)
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%arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
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%0 = load float, float* %arrayidx, align 4
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%add = fadd float %0, 1.000000e+00
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tail call void @llvm.assume(i1 %maskcond4)
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%arrayidx5 = getelementptr inbounds float, float* %b, i64 %indvars.iv
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store float %add, float* %arrayidx5, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv, 1599
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br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
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for.end: ; preds = %for.body
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ret void
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}
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; Test case for PR43620. Make sure we can vectorize with predication in presence
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; of assume calls. For now, check that we drop all assumes in predicated blocks
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; in the vector body.
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define void @predicated_assume(float* noalias nocapture readonly %a, float* noalias nocapture %b, i64 %n) {
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; Check that the vector.body does not contain any assumes.
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; CHECK-LABEL: @predicated_assume(
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; CHECK: vector.body:
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; CHECK-NOT: llvm.assume
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; CHECK: for.body:
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entry:
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br label %for.body
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for.body: ; preds = %for.body.preheader, %if.end5
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %if.end5 ]
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%cmp1 = icmp ult i64 %indvars.iv, 495616
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br i1 %cmp1, label %if.end5, label %if.else
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if.else: ; preds = %for.body
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%cmp2 = icmp ult i64 %indvars.iv, 991232
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tail call void @llvm.assume(i1 %cmp2)
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br label %if.end5
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if.end5: ; preds = %for.body, %if.else
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%x.0 = phi float [ 4.200000e+01, %if.else ], [ 2.300000e+01, %for.body ]
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%arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
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%0 = load float, float* %arrayidx, align 4
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%mul = fmul float %x.0, %0
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%arrayidx7 = getelementptr inbounds float, float* %b, i64 %indvars.iv
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store float %mul, float* %arrayidx7, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%cmp = icmp eq i64 %indvars.iv.next, %n
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br i1 %cmp, label %for.cond.cleanup, label %for.body, !llvm.loop !0
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for.cond.cleanup: ; preds = %if.end5, %entry
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ret void
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}
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!0 = distinct !{!0, !1}
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!1 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
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