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Florian Hahn d9e88f7b7f [LSR] Check for signed overflow in NarrowSearchSpaceByDetectingSupersets. 
We are adding a sign extended IR value to an int64_t, which can cause
signed overflows, as in the attached test case, where we have a formula
with BaseOffset = -1 and a constant with numeric_limits<int64_t>::min().

If the addition would overflow, skip the simplification for this
formula. Note that the target triple is required to trigger the failure.

Reviewers: qcolombet, gilr, kparzysz, efriedma

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D59211

llvm-svn: 356256
 		2019-03-15 12:17:36 +00:00
..
Analysis [InstCombine] canonicalize funnel shift constant shift amount to be modulo bitwidth 2019-03-14 19:22:08 +00:00
AsmParser IR: Add immarg attribute 2019-03-12 21:02:54 +00:00
BinaryFormat [MsgPack] Removed MsgPackTypes 2019-03-13 18:56:33 +00:00
Bitcode IR: Add immarg attribute 2019-03-12 21:02:54 +00:00
CodeGen [CGP] add another bailout for degenerate code (PR41064) 2019-03-14 23:14:31 +00:00
DebugInfo Revert "[llvm] Skip over empty line table entries." 2019-03-13 01:37:58 +00:00
Demangle Add missing include (cstdlib) to Demangle.h 2019-01-22 19:18:18 +00:00
ExecutionEngine Add newline to interpreter debugging output 2019-03-07 10:14:38 +00:00
FuzzMutate [opaque pointer types] Pass value type to LoadInst creation. 2019-02-01 20:44:24 +00:00
Fuzzer
…
IR [InstCombine] canonicalize funnel shift constant shift amount to be modulo bitwidth 2019-03-14 19:22:08 +00:00
IRReader [IRReader] Expose getLazyIRModule 2019-02-11 22:01:13 +00:00
LTO Reland "[Remarks] Add -foptimization-record-passes to filter remark emission" 2019-03-12 21:22:27 +00:00
LineEditor Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Linker Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
MC [MC] Sort FDEs by the associated CIE before emitting them. 2019-03-14 23:08:19 +00:00
MCA [MCA] Highlight kernel bottlenecks in the summary view. 2019-03-04 11:52:34 +00:00
Object [WebAssembly] Improve support for "needed" list in dylink section 2019-03-13 21:29:20 +00:00
ObjectYAML [yaml2obj]Allow explicit setting of p_filesz, p_memsz, and p_offset 2019-03-15 10:35:27 +00:00
Option Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Passes [PGO] Context sensitive PGO (part 3) 2019-03-04 20:21:27 +00:00
ProfileData [SampleFDO] add suffix elision control for fcn names 2019-03-14 13:56:49 +00:00
Remarks [Remarks][NFC] Rename RemarkParser to YAMLRemarkParser 2019-03-05 20:50:35 +00:00
Support Handle consecutive-double-quotes in Windows argument parsing 2019-03-14 19:26:04 +00:00
TableGen [TableGen] Allow 2^63-1 and 2^63-2 as int literals. 2019-03-12 09:28:19 +00:00
Target [X86][SSE] Attempt to convert SSE shift-by-var to shift-by-imm. 2019-03-15 11:05:42 +00:00
Testing Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
TextAPI Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ToolDrivers [llvm-ar][libObject] Fix relative paths when nesting thin archives. 2019-02-13 23:39:41 +00:00
Transforms [LSR] Check for signed overflow in NarrowSearchSpaceByDetectingSupersets. 2019-03-15 12:17:36 +00:00
WindowsManifest Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
XRay Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CMakeLists.txt [OptRemarks] Make OptRemarks more generic: rename OptRemarks to Remarks 2019-03-05 20:45:17 +00:00
LLVMBuild.txt [OptRemarks] Make OptRemarks more generic: rename OptRemarks to Remarks 2019-03-05 20:45:17 +00:00