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46 lines
1.5 KiB
LLVM
46 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes='instcombine' -S < %s | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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define i64 @promote_vscale_i32_to_i64() {
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; CHECK-LABEL: @promote_vscale_i32_to_i64(
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; CHECK-NEXT: [[VSCALE:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[EXT:%.*]] = and i64 [[VSCALE]], 4294967295
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; CHECK-NEXT: ret i64 [[EXT]]
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;
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%vscale = call i32 @llvm.vscale.i32()
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%ext = zext i32 %vscale to i64
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ret i64 %ext
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}
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define i64 @pomote_zext_shl_vscale_i32_to_i64() {
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; CHECK-LABEL: @pomote_zext_shl_vscale_i32_to_i64(
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; CHECK-NEXT: [[VSCALE:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[SHL:%.*]] = shl i64 [[VSCALE]], 3
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; CHECK-NEXT: [[EXT:%.*]] = and i64 [[SHL]], 4294967288
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; CHECK-NEXT: ret i64 [[EXT]]
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;
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%vscale = call i32 @llvm.vscale.i32()
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%shl = shl i32 %vscale, 3
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%ext = zext i32 %shl to i64
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ret i64 %ext
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}
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; Same test as @pomote_zext_shl_vscale_i32_to_i64, but with the
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; vscale_range attribute so that the 'and' is folded away.
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define i64 @free_zext_vscale_shl_i32_to_i64() #0 {
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; CHECK-LABEL: @free_zext_vscale_shl_i32_to_i64(
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; CHECK-NEXT: [[VSCALE:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[SHL:%.*]] = shl nuw nsw i64 [[VSCALE]], 3
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; CHECK-NEXT: ret i64 [[SHL]]
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;
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%vscale = call i32 @llvm.vscale.i32()
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%shl = shl i32 %vscale, 3
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%ext = zext i32 %shl to i64
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ret i64 %ext
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}
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declare i32 @llvm.vscale.i32()
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attributes #0 = { vscale_range(1,16) }
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