maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Exapnd br_jt into indirect branch. Provide pattern for indirect branches. 

llvm-svn: 75983
This commit is contained in:
Anton Korobeynikov 2009-07-16 14:07:24 +00:00
parent d52a95f170
commit 5dfac244a0
2 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
View File

@ -62,6 +62,7 @@ SystemZTargetLowering::SystemZTargetLowering(SystemZTargetMachine &tm) :
setOperationAction(ISD::RET, MVT::Other, Custom);
setOperationAction(ISD::BR_JT, MVT::Other, Expand);
setOperationAction(ISD::BRCOND, MVT::Other, Expand);
setOperationAction(ISD::BR_CC, MVT::i32, Custom);
setOperationAction(ISD::BR_CC, MVT::i64, Custom);

6
llvm/lib/Target/SystemZ/SystemZInstrInfo.td
View File

@ -99,6 +99,12 @@ let isBranch = 1, isTerminator = 1 in {
let isBarrier = 1 in
def JMP : Pseudo<(outs), (ins brtarget:$dst), "j\t{$dst}", [(br bb:$dst)]>;
let isBarrier = 1, isIndirectBranch = 1 in {
def JMPr : Pseudo<(outs), (ins GR64:$dst), "br\t{$dst}", [(brind GR64:$dst)]>;
// FIXME: displacement here is 12 bits
def JMPrri : Pseudo<(outs), (ins rriaddr:$dst), "b\t{$dst}", [(brind rriaddr:$dst)]>;
}
let Uses = [PSW] in {
def JE : Pseudo<(outs), (ins brtarget:$dst),
"je\t$dst",