8cf0290c4a
If the partial matching is found and some other scalars must be inserted, need to account the cost of the extractelements, transformed to shuffles, and/or reused entries and calculate the cost of inserting constants properly into the non-poison vectors. Also, fixed the cost calculation for final gather/buildvector sequence. Differential Revision: https://reviews.llvm.org/D148362
40 lines
1.8 KiB
LLVM
40 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -mtriple=arm64-apple-ios -S -passes=slp-vectorizer < %s | FileCheck %s
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; fshl instruction cost model is an overestimate causing this test to vectorize when it is not beneficial to do so.
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define i64 @fshl(i64 %or1, i64 %or2, i64 %or3 ) {
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; CHECK-LABEL: define i64 @fshl
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; CHECK-SAME: (i64 [[OR1:%.*]], i64 [[OR2:%.*]], i64 [[OR3:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[OR4:%.*]] = tail call i64 @llvm.fshl.i64(i64 [[OR2]], i64 0, i64 1)
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; CHECK-NEXT: [[XOR1:%.*]] = xor i64 [[OR4]], 0
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; CHECK-NEXT: [[OR5:%.*]] = tail call i64 @llvm.fshl.i64(i64 [[OR3]], i64 0, i64 2)
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; CHECK-NEXT: [[XOR2:%.*]] = xor i64 [[OR5]], [[OR1]]
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; CHECK-NEXT: [[ADD1:%.*]] = add i64 [[XOR1]], [[OR1]]
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; CHECK-NEXT: [[ADD2:%.*]] = add i64 0, [[XOR2]]
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; CHECK-NEXT: [[OR6:%.*]] = tail call i64 @llvm.fshl.i64(i64 [[OR1]], i64 [[OR2]], i64 17)
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; CHECK-NEXT: [[XOR3:%.*]] = xor i64 [[OR6]], [[ADD1]]
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; CHECK-NEXT: [[OR7:%.*]] = tail call i64 @llvm.fshl.i64(i64 0, i64 0, i64 21)
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; CHECK-NEXT: [[XOR4:%.*]] = xor i64 [[OR7]], [[ADD2]]
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; CHECK-NEXT: [[ADD3:%.*]] = or i64 [[XOR3]], [[ADD2]]
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; CHECK-NEXT: [[XOR5:%.*]] = xor i64 [[ADD3]], [[XOR4]]
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; CHECK-NEXT: ret i64 [[XOR5]]
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;
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entry:
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%or4 = tail call i64 @llvm.fshl.i64(i64 %or2, i64 0, i64 1)
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%xor1 = xor i64 %or4, 0
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%or5 = tail call i64 @llvm.fshl.i64(i64 %or3, i64 0, i64 2)
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%xor2 = xor i64 %or5, %or1
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%add1 = add i64 %xor1, %or1
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%add2 = add i64 0, %xor2
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%or6 = tail call i64 @llvm.fshl.i64(i64 %or1, i64 %or2, i64 17)
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%xor3 = xor i64 %or6, %add1
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%or7 = tail call i64 @llvm.fshl.i64(i64 0, i64 0, i64 21)
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%xor4 = xor i64 %or7, %add2
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%add3 = or i64 %xor3, %add2
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%xor5 = xor i64 %add3, %xor4
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ret i64 %xor5
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}
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declare i64 @llvm.fshl.i64(i64, i64, i64)
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