45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=aarch64 -mattr=+sve -verify-machineinstrs < %s | FileCheck %s
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define i64 @vscale_lshr(i64 %TC) {
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; CHECK-LABEL: vscale_lshr:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: lsr x8, x8, #4
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; CHECK-NEXT: lsr x8, x8, #3
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; CHECK-NEXT: sub x8, x8, #1
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; CHECK-NEXT: and x0, x0, x8
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; CHECK-NEXT: ret
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%vscale = call i64 @llvm.vscale.i64()
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%shifted = lshr i64 %vscale, 3
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%urem = urem i64 %TC, %shifted
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ret i64 %urem
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}
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define i64 @vscale(i64 %TC) {
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; CHECK-LABEL: vscale:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: lsr x8, x8, #4
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; CHECK-NEXT: sub x8, x8, #1
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; CHECK-NEXT: and x0, x0, x8
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; CHECK-NEXT: ret
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%vscale = call i64 @llvm.vscale.i64()
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%urem = urem i64 %TC, %vscale
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ret i64 %urem
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}
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define i64 @vscale_shl(i64 %TC) {
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; CHECK-LABEL: vscale_shl:
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; CHECK: // %bb.0:
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; CHECK-NEXT: cnth x8
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; CHECK-NEXT: sub x8, x8, #1
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; CHECK-NEXT: and x0, x0, x8
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; CHECK-NEXT: ret
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%vscale = call i64 @llvm.vscale.i64()
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%shifted = shl i64 %vscale, 3
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%urem = urem i64 %TC, %shifted
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ret i64 %urem
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}
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declare i64 @llvm.vscale.i64()
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