forked from OSchip/llvm-project
e618abd6e0
of complex instruction operands (e.g. address modes).
Currently, if a Pat pattern creates an instruction that has a complex
operand (i.e. one that consists of multiple sub-operands at the MI
level), this operand must match a ComplexPattern DAG pattern with the
correct number of output operands.
This commit extends TableGen to alternatively allow match a complex
operands against multiple separate operands at the DAG level.
This allows using Pat patterns to match pre-increment nodes like
pre_store (which must have separate operands at the DAG level) onto
an instruction pattern that uses a multi-operand memory operand,
like the following example on PowerPC (will be committed as a
follow-on patch):
def STWU : DForm_1<37, (outs ptr_rc:$ea_res), (ins GPRC:$rS, memri:$dst),
"stwu $rS, $dst", LdStStoreUpd, []>,
RegConstraint<"$dst.reg = $ea_res">, NoEncode<"$ea_res">;
def : Pat<(pre_store GPRC:$rS, ptr_rc:$ptrreg, iaddroff:$ptroff),
(STWU GPRC:$rS, iaddroff:$ptroff, ptr_rc:$ptrreg)>;
Here, the pair of "ptroff" and "ptrreg" operands is matched onto the
complex operand "dst" of class "memri" in the "STWU" instruction.
Approved by Jakob Stoklund Olesen.
llvm-svn: 177428
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| .. | ||
| FileCheck | ||
| FileUpdate | ||
| KillTheDoctor | ||
| Misc | ||
| PerfectShuffle | ||
| TableGen | ||
| Target/ARM | ||
| bugpoint | ||
| buildit | ||
| count | ||
| crosstool | ||
| emacs | ||
| fpcmp | ||
| git | ||
| jedit | ||
| kate | ||
| lint | ||
| lit | ||
| llvm-build | ||
| llvm-lit | ||
| not | ||
| obj2yaml | ||
| release | ||
| testgen | ||
| textmate | ||
| unittest | ||
| valgrind | ||
| vim | ||
| yaml-bench | ||
| yaml2obj | ||
| DSAclean.py | ||
| DSAextract.py | ||
| GenLibDeps.pl | ||
| GetRepositoryPath | ||
| GetSourceVersion | ||
| LLVMBuild.txt | ||
| Makefile | ||
| UpdateCMakeLists.pl | ||
| check-each-file | ||
| clang-parse-diagnostics-file | ||
| codegen-diff | ||
| countloc.sh | ||
| findmisopt | ||
| findoptdiff | ||
| findsym.pl | ||
| getsrcs.sh | ||
| lldbDataFormatters.py | ||
| llvm-compilers-check | ||
| llvm-native-gcc | ||
| llvm-native-gxx | ||
| llvm.grm | ||
| llvm.natvis | ||
| llvmdo | ||
| llvmgrep | ||
| makellvm | ||
| profile.pl | ||
| sort_includes.py | ||
| test_debuginfo.pl | ||
| wciia.py | ||