RPCSX/llvm
1
0
Fork 0
mirror of https://github.com/RPCSX/llvm.git synced 2025-01-19 10:53:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Don't mark CMOV_GR8 as two-address, or commutable, since it's a pseudo.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80271 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-08-27 18:16:24 +00:00
parent a01a80fa6c
commit a4c5c33041
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/Target/X86/X86InstrInfo.td
View File

@ -1034,19 +1034,19 @@ let isTwoAddress = 1 in {
// Conditional moves
let Uses = [EFLAGS] in {
let isCommutable = 1 in {
// X86 doesn't have 8-bit conditional moves. Use a customDAGSchedInserter to
// emit control flow. An alternative to this is to mark i8 SELECT as Promote,
// however that requires promoting the operands, and can induce additional
// i8 register pressure.
let usesCustomDAGSchedInserter = 1 in
let usesCustomDAGSchedInserter = 1, isTwoAddress = 0 in
def CMOV_GR8 : I<0, Pseudo,
(outs GR8:$dst), (ins GR8:$src1, GR8:$src2, i8imm:$cond),
"#CMOV_GR8 PSEUDO!",
[(set GR8:$dst, (X86cmov GR8:$src1, GR8:$src2,
imm:$cond, EFLAGS))]>;
let isCommutable = 1 in {
def CMOVB16rr : I<0x42, MRMSrcReg, // if <u, GR16 = GR16
(outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
"cmovb\t{$src2, $dst|$dst, $src2}",