xref: /llvm-project/llvm/test/Analysis/CostModel/AMDGPU/gep.ll (revision 68c50b111d74afb9489cf97770fa917d0a1c7f77)
1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
2; RUN: opt -passes="print<cost-model>" 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa -mcpu=gfx1010 < %s | FileCheck -check-prefixes=ALL %s
3; RUN: opt -passes="print<cost-model>" 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa -mcpu=gfx90a < %s | FileCheck -check-prefixes=ALL %s
4; RUN: opt -passes="print<cost-model>" 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefixes=ALL %s
5; RUN: opt -passes="print<cost-model>" 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa < %s | FileCheck -check-prefixes=ALL %s
6
7; RUN: opt -passes="print<cost-model>" -cost-kind=code-size 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa -mcpu=gfx1010 < %s | FileCheck -check-prefixes=ALL-SIZE %s
8; RUN: opt -passes="print<cost-model>" -cost-kind=code-size 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa -mcpu=gfx90a < %s | FileCheck -check-prefixes=ALL-SIZE %s
9; RUN: opt -passes="print<cost-model>" -cost-kind=code-size 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefixes=ALL-SIZE %s
10; RUN: opt -passes="print<cost-model>" -cost-kind=code-size 2>&1 -disable-output -mtriple=amdgcn-unknown-amdhsa < %s | FileCheck -check-prefixes=ALL-SIZE %s
11; END.
12
13define void @test_geps() {
14; ALL-LABEL: 'test_geps'
15; ALL-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
16; ALL-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
17; ALL-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: ret void
18;
19; ALL-SIZE-LABEL: 'test_geps'
20; ALL-SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
21; ALL-SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
22; ALL-SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret void
23;
24
25
26
27  ; Check that we handle outlandishly large GEPs properly.  This is unlikely to
28  ; be a valid pointer, but LLVM still generates GEPs like this sometimes in
29  ; dead code.
30  ; This GEP has index INT64_MAX, which is cost 1.
31  %giant_gep0 = getelementptr inbounds i8, ptr undef, i64 9223372036854775807
32
33  ; This GEP index wraps around to -1, which is cost 0.
34  %giant_gep1 = getelementptr inbounds i8, ptr undef, i128 295147905179352825855
35
36  ret void
37}
38