46 lines
3 KiB
LLVM
46 lines
3 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
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; RUN: opt < %s -mtriple=x86_64-apple-macosx10.8.0 -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=throughput -mcpu=corei7-avx | FileCheck %s --check-prefix=THRU
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; RUN: opt < %s -mtriple=x86_64-apple-macosx10.8.0 -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=latency -mcpu=corei7-avx | FileCheck %s --check-prefix=LATE
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; RUN: opt < %s -mtriple=x86_64-apple-macosx10.8.0 -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mcpu=corei7-avx | FileCheck %s --check-prefix=SIZE
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; RUN: opt < %s -mtriple=x86_64-apple-macosx10.8.0 -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=size-latency -mcpu=corei7-avx | FileCheck %s --check-prefix=SIZE_LATE
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define void @test_geps() {
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; THRU-LABEL: 'test_geps'
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; THRU-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
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; THRU-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
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; THRU-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; LATE-LABEL: 'test_geps'
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; LATE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
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; LATE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
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; LATE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
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;
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; SIZE-LABEL: 'test_geps'
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; SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
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; SIZE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
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; SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
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;
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; SIZE_LATE-LABEL: 'test_geps'
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; SIZE_LATE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
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; SIZE_LATE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
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; SIZE_LATE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
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;
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; Cost of scalar geps should be zero.
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; We expect it to be folded into the instruction addressing mode.
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; Vector geps should also have zero cost.
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; Check that we handle outlandishly large GEPs properly. This is unlikely to
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; be a valid pointer, but LLVM still generates GEPs like this sometimes in
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; dead code.
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; This GEP has index INT64_MAX, which is cost 1.
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%giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
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; This GEP index wraps around to -1, which is cost 0.
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%giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
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ret void
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}
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