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Jonas Paulsson 8ae0f88b13 [SystemZ::TTI] Return zero cost for ICmp that becomes Load And Test. 
A loaded value with multiple users compared with 0 will become a load and
test single instruction. The load is not folded in this case (multiple
users), but the compare instruction is eliminated.

This patch returns 0 cost for the icmp in these cases.

Review: Ulrich Weigand
https://reviews.llvm.org/D55111

llvm-svn: 348141
 		2018-12-03 14:30:18 +00:00
..
Analysis [ValueTracking] Support funnel shifts in computeKnownBits() 2018-12-02 14:14:11 +00:00
AsmParser [DebugInfo] IR/Bitcode changes for DISubprogram flags. 2018-11-28 21:14:32 +00:00
BinaryFormat Use RequireNullTerminator=false in identify_magic. 2018-12-01 00:22:39 +00:00
Bitcode [DebugInfo] IR/Bitcode changes for DISubprogram flags. 2018-11-28 21:14:32 +00:00
CodeGen [SelectionDAG] fold constant with undef vector per element 2018-12-02 13:48:42 +00:00
DebugInfo [llvm-dwarfdump] - Stop printing the bogus empty section name on invalid dwarf. 2018-12-03 10:33:40 +00:00
Demangle [Demangle] remove itaniumFindTypesInMangledName 2018-11-27 16:11:24 +00:00
ExecutionEngine [ExecutionEngine][Interpreter] Fix out-of-bounds array access. 2018-11-20 01:01:26 +00:00
FuzzMutate [New PM] Introducing PassInstrumentation framework 2018-09-20 17:08:45 +00:00
Fuzzer
…
IR [InstCombine] Support ssub.sat canonicalization for non-splats 2018-12-01 10:58:34 +00:00
IRReader
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LTO [ThinLTO] Import local variables from the same module as caller 2018-11-29 17:02:42 +00:00
LineEditor
…
Linker [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
MC [ARM][MC] Move information about variadic register defs into tablegen 2018-12-03 10:32:42 +00:00
Object Use llvm::copy. NFC 2018-11-17 01:44:25 +00:00
ObjectYAML [Hexagon] Add missing flags to ELF YAMLIO 2018-11-28 16:25:47 +00:00
OptRemarks Reland: [OptRemarks] Add library for parsing optimization remarks 2018-10-10 18:43:42 +00:00
Option [opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>" 2018-10-10 00:15:31 +00:00
Passes [stack-safety] Empty local passes for Stack Safety Global Analysis 2018-11-26 23:05:48 +00:00
ProfileData Support for remapping profile data when symbols change, for sample-based 2018-10-10 21:31:01 +00:00
Support Add Hurd target to LLVMSupport (1/2) 2018-11-29 03:23:01 +00:00
TableGen [TableGen] Preprocessing support 2018-11-27 18:57:43 +00:00
Target [SystemZ::TTI] Return zero cost for ICmp that becomes Load And Test. 2018-12-03 14:30:18 +00:00
Testing Fix error with SmallString implicit conversion. 2018-09-06 22:47:32 +00:00
ToolDrivers [opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>" 2018-10-10 00:15:31 +00:00
Transforms [KMSAN] Enable -msan-handle-asm-conservative by default 2018-12-03 10:15:43 +00:00
WindowsManifest
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XRay [XRay] Improve FDR trace handling and error messaging 2018-11-09 06:26:48 +00:00
CMakeLists.txt Revert r347823 "[TextAPI] Switch back to a custom Platform enum." 2018-11-29 15:47:24 +00:00
LLVMBuild.txt Revert r347823 "[TextAPI] Switch back to a custom Platform enum." 2018-11-29 15:47:24 +00:00