19 lines
798 B
LLVM
19 lines
798 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=instcombine < %s | FileCheck %s
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target triple = "aarch64-unknown-linux-gnu"
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; Test that rdffr is substituted with predicated form which enables ptest optimization later.
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define <vscale x 16 x i1> @predicate_rdffr() #0 {
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; CHECK-LABEL: @predicate_rdffr(
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; CHECK-NEXT: [[TMP1:%.*]] = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
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; CHECK-NEXT: [[OUT:%.*]] = call <vscale x 16 x i1> @llvm.aarch64.sve.rdffr.z(<vscale x 16 x i1> [[TMP1]])
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; CHECK-NEXT: ret <vscale x 16 x i1> [[OUT]]
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;
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%out = call <vscale x 16 x i1> @llvm.aarch64.sve.rdffr()
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ret <vscale x 16 x i1> %out
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}
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declare <vscale x 16 x i1> @llvm.aarch64.sve.rdffr()
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attributes #0 = { "target-features"="+sve" }
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