37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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@wyhash64_x = global i64 0, align 8
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define i64 @_Z8wyhash64v() {
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; CHECK-LABEL: @_Z8wyhash64v(
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; CHECK-NEXT: [[TMP1:%.*]] = load i64, i64* @wyhash64_x, align 8
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; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[TMP1]], 6971258582664805397
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; CHECK-NEXT: store i64 [[TMP2]], i64* @wyhash64_x, align 8
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; CHECK-NEXT: [[TMP3:%.*]] = zext i64 [[TMP2]] to i128
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; CHECK-NEXT: [[TMP4:%.*]] = mul nuw i128 [[TMP3]], 11795372955171141389
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; CHECK-NEXT: [[TMP5:%.*]] = lshr i128 [[TMP4]], 64
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; CHECK-NEXT: [[DOTMASKED:%.*]] = and i128 [[TMP4]], 18446744073709551615
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; CHECK-NEXT: [[TMP6:%.*]] = xor i128 [[TMP5]], [[DOTMASKED]]
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; CHECK-NEXT: [[TMP7:%.*]] = mul nuw nsw i128 [[TMP6]], 1946526487930394057
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; CHECK-NEXT: [[TMP8:%.*]] = lshr i128 [[TMP7]], 64
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; CHECK-NEXT: [[TMP9:%.*]] = xor i128 [[TMP8]], [[TMP7]]
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; CHECK-NEXT: [[TMP10:%.*]] = trunc i128 [[TMP9]] to i64
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; CHECK-NEXT: ret i64 [[TMP10]]
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;
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%1 = load i64, i64* @wyhash64_x, align 8
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%2 = add i64 %1, 6971258582664805397
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store i64 %2, i64* @wyhash64_x, align 8
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%3 = zext i64 %2 to i128
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%4 = mul i128 %3, 11795372955171141389
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%5 = lshr i128 %4, 64
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%6 = xor i128 %5, %4
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%7 = trunc i128 %6 to i64
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%8 = zext i64 %7 to i128
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%9 = mul i128 %8, 1946526487930394057
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%10 = lshr i128 %9, 64
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%11 = xor i128 %10, %9
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%12 = trunc i128 %11 to i64
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ret i64 %12
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}
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