<div dir="ltr">Wound it be easier just revert and reland correct patch?<div>Also easier to backport it to other LLVM version as a single patch.</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Aug 20, 2018 at 12:08 PM Samuel Pitoiset <<a href="mailto:samuel.pitoiset@gmail.com">samuel.pitoiset@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">This should be fixed by <a href="https://reviews.llvm.org/D50974" rel="noreferrer" target="_blank">https://reviews.llvm.org/D50974</a><br>
<br>
Sorry for the breakage and please don't revert it, I guess a fix should <br>
be upstream soon.<br>
<br>
Thanks!<br>
<br>
On 8/20/18 8:36 PM, Vitaly Buka wrote:<br>
> Not sure how this suppose to work.<br>
> Now MAX_COMMON_ADDRESS allows to have AS1 and AS2 == 6 <br>
> and (*ASAliasRules)[AS1][AS2].<br>
> but ASAliasRulesPrivIsZero and ASAliasRulesGenIsZero had only 6 elements<br>
> <br>
> If no one is looking, I am going to revert.<br>
> <br>
> On Mon, Aug 20, 2018 at 11:24 AM Vitaly Buka <<a href="mailto:vitalybuka@google.com" target="_blank">vitalybuka@google.com</a> <br>
> <mailto:<a href="mailto:vitalybuka@google.com" target="_blank">vitalybuka@google.com</a>>> wrote:<br>
> <br>
>     Similar for msan<br>
>     <a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/6784" rel="noreferrer" target="_blank">http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/6784</a><br>
>     and ubsan<br>
>     <a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-ubsan/builds/5631/steps/check-llvm%20ubsan/logs/stdio" rel="noreferrer" target="_blank">http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-ubsan/builds/5631/steps/check-llvm%20ubsan/logs/stdio</a><br>
> <br>
>     On Mon, Aug 20, 2018 at 11:22 AM Vitaly Buka <<a href="mailto:vitalybuka@google.com" target="_blank">vitalybuka@google.com</a><br>
>     <mailto:<a href="mailto:vitalybuka@google.com" target="_blank">vitalybuka@google.com</a>>> wrote:<br>
> <br>
>         This looks caused by the patch<br>
>         <a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap/builds/6883/steps/check-llvm%20asan/logs/stdio" rel="noreferrer" target="_blank">http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap/builds/6883/steps/check-llvm%20asan/logs/stdio</a><br>
> <br>
>         FAIL: LLVM :: CodeGen/AMDGPU/amdgpu-alias-analysis.ll (5325 of<br>
>         27229) ******************** TEST 'LLVM ::<br>
>         CodeGen/AMDGPU/amdgpu-alias-analysis.ll' FAILED<br>
>         ******************** Script: -- : 'RUN: at line 1';<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/opt -mtriple=amdgcn--<br>
>         -O3 -aa-eval -print-all-alias-modref-info -disable-output <<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
>         2>&1 |<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/FileCheck<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
>         : 'RUN: at line 2';<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/opt -mtriple=r600--<br>
>         -O3 -aa-eval -print-all-alias-modref-info -disable-output <<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
>         2>&1 |<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/FileCheck<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
>         -- Exit Code: 1 Command Output (stderr): --<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll:10:10:<br>
>         error: CHECK: expected string not found in input ; CHECK:<br>
>         NoAlias: i8 addrspace(1)* %p1, i8 addrspace(6)* %p ^<br>
>         <stdin>:3:1: note: scanning from here Function:<br>
>         test_32bit_addr_space: 2 pointers, 0 call sites ^ <stdin>:3:5:<br>
>         note: possible intended match here Function:<br>
>         test_32bit_addr_space: 2 pointers, 0 call sites ^ --<br>
>         ******************** Testing: 0 .. 10.. 20 FAIL: LLVM ::<br>
>         CodeGen/AMDGPU/widen-smrd-loads.ll (6391 of 27229)<br>
>         ******************** TEST 'LLVM ::<br>
>         CodeGen/AMDGPU/widen-smrd-loads.ll' FAILED ********************<br>
>         Script: -- : 'RUN: at line 1';<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/llc -amdgpu-codegenprepare-widen-constant-loads=0<br>
>         -march=amdgcn -mcpu=tahiti -verify-machineinstrs <<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/widen-smrd-loads.ll<br>
>         |<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/FileCheck<br>
>         -enable-var-scope -check-prefixes=GCN,SI<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/widen-smrd-loads.ll<br>
>         : 'RUN: at line 2';<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/llc -amdgpu-codegenprepare-widen-constant-loads=0<br>
>         -march=amdgcn -mcpu=tonga -verify-machineinstrs <<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/widen-smrd-loads.ll<br>
>         |<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/FileCheck<br>
>         -enable-var-scope -check-prefixes=GCN,VI<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/widen-smrd-loads.ll<br>
>         -- Exit Code: 1 Command Output (stderr): --<br>
>         ================================================================= ==22327==ERROR:<br>
>         AddressSanitizer: global-buffer-overflow on address<br>
>         0x000007134b68 at pc 0x0000012c05c8 bp 0x7fff2e2b6b40 sp<br>
>         0x7fff2e2b6b38 READ of size 1 at 0x000007134b68 thread T0 #0<br>
>         0x12c05c7 in getAliasResult<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp:99:10<br>
>         #1 0x12c05c7 in llvm::AMDGPUAAResult::alias(llvm::MemoryLocation<br>
>         const&, llvm::MemoryLocation const&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp:107<br>
>         #2 0x3367dc1 in llvm::AAResults::alias(llvm::MemoryLocation<br>
>         const&, llvm::MemoryLocation const&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/AliasAnalysis.cpp:105:23<br>
>         #3 0x3396a90 in alias<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/include/llvm/Analysis/AliasAnalysis.h:896:25<br>
>         #4 0x3396a90 in llvm::BasicAAResult::aliasCheck(llvm::Value<br>
>         const*, unsigned long, llvm::AAMDNodes, llvm::Value const*,<br>
>         unsigned long, llvm::AAMDNodes, llvm::Value const*, llvm::Value<br>
>         const*)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/BasicAliasAnalysis.cpp:1779<br>
>         #5 0x33951de in llvm::BasicAAResult::alias(llvm::MemoryLocation<br>
>         const&, llvm::MemoryLocation const&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/BasicAliasAnalysis.cpp:780:23<br>
>         #6 0x3367dc1 in llvm::AAResults::alias(llvm::MemoryLocation<br>
>         const&, llvm::MemoryLocation const&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/AliasAnalysis.cpp:105:23<br>
>         #7 0x35d070c in<br>
>         llvm::MemoryDependenceResults::getSimplePointerDependencyFrom(llvm::MemoryLocation<br>
>         const&, bool,<br>
>         llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction,<br>
>         true, false, void>, false, false>, llvm::BasicBlock*,<br>
>         llvm::Instruction*, unsigned int*)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp:577:26<br>
>         #8 0x35cfb45 in<br>
>         llvm::MemoryDependenceResults::getSimplePointerDependencyFrom(llvm::MemoryLocation<br>
>         const&, bool,<br>
>         llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction,<br>
>         true, false, void>, false, false>, llvm::BasicBlock*,<br>
>         llvm::Instruction*, unsigned int*)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp:448:12<br>
>         #9 0x35ce759 in<br>
>         llvm::MemoryDependenceResults::getPointerDependencyFrom(llvm::MemoryLocation<br>
>         const&, bool,<br>
>         llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction,<br>
>         true, false, void>, false, false>, llvm::BasicBlock*,<br>
>         llvm::Instruction*, unsigned int*)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp:341:28<br>
>         #10 0x12c95d4 in isClobberedInFunction<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAnnotateUniformValues.cpp:112:19<br>
>         #11 0x12c95d4 in visitLoadInst<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAnnotateUniformValues.cpp:142<br>
>         #12 0x12c95d4 in visitLoad<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/include/llvm/IR/Instruction.def:153<br>
>         #13 0x12c95d4 in visit<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/include/llvm/IR/Instruction.def:153<br>
>         #14 0x12c95d4 in<br>
>         visit<llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction,<br>
>         true, false, void>, false, false> ><br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/include/llvm/IR/InstVisitor.h:92<br>
>         #15 0x12c95d4 in visit<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/include/llvm/IR/InstVisitor.h:107<br>
>         #16 0x12c95d4 in<br>
>         visit<llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::BasicBlock,<br>
>         true, false, void>, false, false> ><br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/include/llvm/IR/InstVisitor.h:92<br>
>         #17 0x12c95d4 in visit<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/include/llvm/IR/InstVisitor.h:103<br>
>         #18 0x12c95d4 in (anonymous<br>
>         namespace)::AMDGPUAnnotateUniformValues::runOnFunction(llvm::Function&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAnnotateUniformValues.cpp:184<br>
>         #19 0x47fea6d in<br>
>         llvm::FPPassManager::runOnFunction(llvm::Function&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/IR/LegacyPassManager.cpp:1586:27<br>
>         #20 0x3464f8c in RunPassOnSCC<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/CallGraphSCCPass.cpp:166:25<br>
>         #21 0x3464f8c in RunAllPassesOnSCC<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/CallGraphSCCPass.cpp:430<br>
>         #22 0x3464f8c in (anonymous<br>
>         namespace)::CGPassManager::runOnModule(llvm::Module&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Analysis/CallGraphSCCPass.cpp:486<br>
>         #23 0x47ffe7e in runOnModule<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/IR/LegacyPassManager.cpp:1669:27<br>
>         #24 0x47ffe7e in<br>
>         llvm::legacy::PassManagerImpl::run(llvm::Module&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/IR/LegacyPassManager.cpp:1774<br>
>         #25 0xa074af in compileModule(char**, llvm::LLVMContext&)<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/tools/llc/llc.cpp:597:8<br>
>         #26 0xa00ae0 in main<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/tools/llc/llc.cpp:351:22<br>
>         #27 0x7f33f66c22e0 in __libc_start_main<br>
>         (/lib/x86_64-linux-gnu/libc.so.6+0x202e0) #28 0x8f4b99 in _start<br>
>         (/b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/bin/llc+0x8f4b99)<br>
>         0x000007134b68 is located 56 bytes to the left of global<br>
>         variable '<string literal>' defined in<br>
>         '/b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp:74:5'<br>
>         (0x7134ba0) of size 129 '<string literal>' is ascii string<br>
>         'AS.GLOBAL_ADDRESS == 1 && AS.REGION_ADDRESS == 2 &&<br>
>         AS.LOCAL_ADDRESS == 3 && AS.CONSTANT_ADDRESS == 4 &&<br>
>         AS.PRIVATE_ADDRESS == 5' 0x000007134b68 is located 4 bytes to<br>
>         the right of global variable 'ASAliasRulesGenIsZero' defined in<br>
>         '/b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp:63:28'<br>
>         (0x7134b40) of size 36 SUMMARY: AddressSanitizer:<br>
>         global-buffer-overflow<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp:99:10<br>
>         in getAliasResult Shadow bytes around the buggy address:<br>
>         0x000080e1e910: 00 00 00 00 00 00 00 00 00 07 f9 f9 f9 f9 f9 f9<br>
>         0x000080e1e920: 00 00 00 00 00 00 00 01 f9 f9 f9 f9 00 00 00 00<br>
>         0x000080e1e930: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00<br>
>         0x000080e1e940: f9 f9 f9 f9 00 00 00 00 00 03 f9 f9 f9 f9 f9 f9<br>
>         0x000080e1e950: 00 00 00 00 00 00 04 f9 f9 f9 f9 f9 00 00 00 00<br>
>         =>0x000080e1e960: 00 00 00 00 00 00 00 00 00 00 00 00 04[f9]f9<br>
>         f9 0x000080e1e970: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00<br>
>         00 0x000080e1e980: 00 00 00 00 01 f9 f9 f9 f9 f9 f9 f9 00 00 00<br>
>         00 0x000080e1e990: 00 00 00 00 00 00 00 01 f9 f9 f9 f9 00 00 00<br>
>         00 0x000080e1e9a0: 00 00 00 00 00 00 01 f9 f9 f9 f9 f9 00 00 00<br>
>         00 0x000080e1e9b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00<br>
>         01 Shadow byte legend (one shadow byte represents 8 application<br>
>         bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06<br>
>         07 Heap left redzone: fa Freed heap region: fd Stack left<br>
>         redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack<br>
>         after return: f5 Stack use after scope: f8 Global redzone: f9<br>
>         Global init order: f6 Poisoned by user: f7 Container overflow:<br>
>         fc Array cookie: ac Intra object redzone: bb ASan internal: fe<br>
>         Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc<br>
>         ==22327==ABORTING<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm/test/CodeGen/AMDGPU/widen-smrd-loads.ll:143:14:<br>
>         error: GCN-LABEL: expected string not found in input ;<br>
>         GCN-LABEL: {{^}}widen_i16_constant32_load: ^ <stdin>:518:37:<br>
>         note: scanning from here widen_i1_zext_to_i64_constant_load: ;<br>
>         @widen_i1_zext_to_i64_constant_load ^ <stdin>:518:48: note:<br>
>         possible intended match here widen_i1_zext_to_i64_constant_load:<br>
>         ; @widen_i1_zext_to_i64_constant_load ^ -- ********************<br>
>         Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..<br>
>         Testing Time: 384.24s ******************** Failing Tests (2):<br>
>         LLVM :: CodeGen/AMDGPU/amdgpu-alias-analysis.ll LLVM ::<br>
>         CodeGen/AMDGPU/widen-smrd-loads.ll Expected Passes : 26393<br>
>         Expected Failures : 148 Unsupported Tests : 686 Unexpected<br>
>         Failures: 2 FAILED: test/CMakeFiles/check-llvm cd<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/test<br>
>         && /usr/bin/python2.7<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/./bin/llvm-lit<br>
>         -sv<br>
>         /b/sanitizer-x86_64-linux-bootstrap/build/llvm_build_asan/test<br>
>         ninja: build stopped: subcommand failed. + echo<br>
>         @@@STEP_FAILURE@@@ + echo @@@BUILD_STEP check-clang asan@@@<br>
>         @@@STEP_FAILURE@@@<br>
>         --------------------------------------------------------------------------------<br>
>         started: Mon Aug 20 06:50:07 2018 ended: Mon Aug 20 07:15:07<br>
>         2018 duration: 24 mins, 59 secs<br>
> <br>
> <br>
>         On Mon, Aug 20, 2018 at 6:19 AM Samuel Pitoiset via llvm-commits<br>
>         <<a href="mailto:llvm-commits@lists.llvm.org" target="_blank">llvm-commits@lists.llvm.org</a><br>
>         <mailto:<a href="mailto:llvm-commits@lists.llvm.org" target="_blank">llvm-commits@lists.llvm.org</a>>> wrote:<br>
> <br>
>             Author: hakzsam<br>
>             Date: Mon Aug 20 06:18:59 2018<br>
>             New Revision: 340171<br>
> <br>
>             URL: <a href="http://llvm.org/viewvc/llvm-project?rev=340171&view=rev" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project?rev=340171&view=rev</a><br>
>             Log:<br>
>             AMDGPU: bump AS.MAX_COMMON_ADDRESS to 6 since 32-bit addr space<br>
> <br>
>             32-bit constant address space is declared as 6, so the<br>
>             maximum number of address spaces is 6, not 5.<br>
> <br>
>             Fixes "LLVM ERROR: Pointer address space out of range".<br>
> <br>
>             v3: use static_assert()<br>
>             v2: add a very simple test for 32-bit addr space<br>
> <br>
>             Bugzilla: <a href="https://bugs.freedesktop.org/show_bug.cgi?id=106630" rel="noreferrer" target="_blank">https://bugs.freedesktop.org/show_bug.cgi?id=106630</a><br>
>             Signed-off-by: Samuel Pitoiset <<a href="mailto:samuel.pitoiset@gmail.com" target="_blank">samuel.pitoiset@gmail.com</a><br>
>             <mailto:<a href="mailto:samuel.pitoiset@gmail.com" target="_blank">samuel.pitoiset@gmail.com</a>>><br>
> <br>
>             Modified:<br>
>                  llvm/trunk/lib/Target/AMDGPU/AMDGPU.h<br>
>                  llvm/trunk/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp<br>
>                  llvm/trunk/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
> <br>
>             Modified: llvm/trunk/lib/Target/AMDGPU/AMDGPU.h<br>
>             URL:<br>
>             <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/AMDGPU.h?rev=340171&r1=340170&r2=340171&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/AMDGPU.h?rev=340171&r1=340170&r2=340171&view=diff</a><br>
>             ==============================================================================<br>
>             --- llvm/trunk/lib/Target/AMDGPU/AMDGPU.h (original)<br>
>             +++ llvm/trunk/lib/Target/AMDGPU/AMDGPU.h Mon Aug 20<br>
>             06:18:59 2018<br>
>             @@ -229,7 +229,7 @@ struct AMDGPUAS {<br>
> <br>
>                 enum : unsigned {<br>
>                   // The maximum value for flat, generic, local,<br>
>             private, constant and region.<br>
>             -    MAX_COMMON_ADDRESS = 5,<br>
>             +    MAX_COMMON_ADDRESS = 6,<br>
> <br>
>                   GLOBAL_ADDRESS = 1,   ///< Address space for global<br>
>             memory (RAT0, VTX0).<br>
>                   CONSTANT_ADDRESS = 4, ///< Address space for constant<br>
>             memory (VTX2)<br>
> <br>
>             Modified: llvm/trunk/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp<br>
>             URL:<br>
>             <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp?rev=340171&r1=340170&r2=340171&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp?rev=340171&r1=340170&r2=340171&view=diff</a><br>
>             ==============================================================================<br>
>             --- llvm/trunk/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp<br>
>             (original)<br>
>             +++ llvm/trunk/lib/Target/AMDGPU/AMDGPUAliasAnalysis.cpp Mon<br>
>             Aug 20 06:18:59 2018<br>
>             @@ -69,7 +69,7 @@ AMDGPUAAResult::ASAliasRulesTy::ASAliasR<br>
>                 /* Region   */ {MayAlias, NoAlias , NoAlias , NoAlias, <br>
>             MayAlias, NoAlias},<br>
>                 /* Private  */ {MayAlias, NoAlias , NoAlias , NoAlias ,<br>
>             NoAlias , MayAlias}<br>
>                 };<br>
>             -  assert(AS.MAX_COMMON_ADDRESS <= 5);<br>
>             +  static_assert(AS.MAX_COMMON_ADDRESS <= 6, "Addr space out<br>
>             of range");<br>
>                 if (AS.FLAT_ADDRESS == 0) {<br>
>                   assert(AS.GLOBAL_ADDRESS   == 1 &&<br>
>                          AS.REGION_ADDRESS   == 2 &&<br>
> <br>
>             Modified:<br>
>             llvm/trunk/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
>             URL:<br>
>             <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll?rev=340171&r1=340170&r2=340171&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll?rev=340171&r1=340170&r2=340171&view=diff</a><br>
>             ==============================================================================<br>
>             --- llvm/trunk/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
>             (original)<br>
>             +++ llvm/trunk/test/CodeGen/AMDGPU/amdgpu-alias-analysis.ll<br>
>             Mon Aug 20 06:18:59 2018<br>
>             @@ -7,3 +7,9 @@ define void @test(i8 addrspace(5)* %p, i<br>
>                 ret void<br>
>               }<br>
> <br>
>             +; CHECK: NoAlias:      i8 addrspace(1)* %p1, i8<br>
>             addrspace(6)* %p<br>
>             +<br>
>             +define void @test_32bit_addr_space(i8 addrspace(6)* %p, i8<br>
>             addrspace(1)* %p1) {<br>
>             +  ret void<br>
>             +}<br>
>             +<br>
> <br>
> <br>
>             _______________________________________________<br>
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> <br>
</blockquote></div>