Andrea Di Biagio 3b15669938 Fix for PR23103. Correctly propagate the 'IsUndef' flag to the register operands of a commuted instruction. ... Revision 220239 exposed a latent bug in method 'TargetInstrInfo::commuteInstruction'. When commuting the operands of a machine instruction, method 'commuteInstruction' didn't correctly propagate the 'IsUndef' flag to the register operands of the new (commuted) instruction. Before this patch, the following instruction: %vreg4<def> = VADDSDrr %vreg14, %vreg5<undef>; FR64:%vreg4,%vreg14,%vreg5 was wrongly converted by method 'commuteInstruction' into: %vreg4<def> = VADDSDrr %vreg5, %vreg14<undef>; FR64:%vreg4,%vreg5,%vreg14 The correct instruction should have been: %vreg4<def> = VADDSDrr %vreg5<undef>, %vreg14; FR64:%vreg4,%vreg5,%vreg14 This patch fixes the problem in method 'TargetInstrInfo::commuteInstruction'. When swapping the operands of a machine instruction, we now make sure that 'IsUndef' flags are correctly set. Added test case 'pr23103.ll'. Differential Revision: http://reviews.llvm.org/D9406 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236258 91177308-0d34-0410-b5e6-96231b3b80d8		2015-04-30 21:03:29 +00:00
..
Analysis
AsmParser	[opaque pointer type] Pass GlobalAlias the actual pointer type rather than decomposing it into pointee type + address space	2015-04-29 21:22:39 +00:00
Bitcode
CodeGen	Fix for PR23103. Correctly propagate the 'IsUndef' flag to the register operands of a commuted instruction.	2015-04-30 21:03:29 +00:00
DebugInfo
ExecutionEngine
Fuzzer
IR	[opaque pointer type] Store the value type of an alloca	2015-04-29 23:00:35 +00:00
IRReader
LineEditor
Linker	[opaque pointer type] Pass GlobalAlias the actual pointer type rather than decomposing it into pointee type + address space	2015-04-29 21:22:39 +00:00
LTO
MC	Avoid an extra loop over the sections.	2015-04-30 20:57:14 +00:00
Object
Option
Passes
ProfileData
Support
TableGen	[TableGen] Cleanup formatting by moving operators from beginning of line to end of previous line. NFC	2015-04-30 05:54:22 +00:00
Target	Mips: Remove dead declaration	2015-04-30 19:35:43 +00:00
Transforms	[InstCombine] Add new rule for MIN(MAX(~A, ~B), ~C) et. al.	2015-04-30 04:56:04 +00:00
CMakeLists.txt
LLVMBuild.txt	[PM] Create a separate library for high-level pass management code.	2015-03-07 09:02:36 +00:00
Makefile