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author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-07-25 09:04:52 +0000 |
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committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-07-25 09:04:52 +0000 |
commit | cf20e45cc4cb77bcb16363531e600883cd27ff80 (patch) | |
tree | cebffed322b6409d23f5b236e86b1faab811143a /lib/Target/SystemZ/SystemZPatterns.td | |
parent | b284e1bf08d24deb20b7deab71fce6f3034cc89a (diff) | |
download | llvm-cf20e45cc4cb77bcb16363531e600883cd27ff80.tar.gz llvm-cf20e45cc4cb77bcb16363531e600883cd27ff80.tar.bz2 llvm-cf20e45cc4cb77bcb16363531e600883cd27ff80.tar.xz |
[SystemZ] Add LOC and LOCG
As with the stores, these instructions can trap when the condition is false,
so they are only used for things like (cond ? x : *ptr).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187112 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/SystemZ/SystemZPatterns.td')
-rw-r--r-- | lib/Target/SystemZ/SystemZPatterns.td | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/SystemZPatterns.td b/lib/Target/SystemZ/SystemZPatterns.td index 74cc5f019a..4e4386a398 100644 --- a/lib/Target/SystemZ/SystemZPatterns.td +++ b/lib/Target/SystemZ/SystemZPatterns.td @@ -54,6 +54,18 @@ multiclass RMWIByte<SDPatternOperator operator, AddressingMode mode, def : RMWI<anyextloadi8, operator, truncstorei8, mode, imm64, insn>; } +// Record that INSN conditionally performs load operation LOAD into a +// register of class CLS. The load may trap even if the condition is false. +multiclass CondLoad<Instruction insn, RegisterOperand cls, + SDPatternOperator load> { + def : Pat<(z_select_ccmask (load bdaddr20only:$addr), cls:$new, uimm8zx4:$cc), + (insn cls:$new, bdaddr20only:$addr, uimm8zx4:$cc)>, + Requires<[FeatureLoadStoreOnCond]>; + def : Pat<(z_select_ccmask cls:$new, (load bdaddr20only:$addr), uimm8zx4:$cc), + (insn cls:$new, bdaddr20only:$addr, (INVCC uimm8zx4:$cc))>, + Requires<[FeatureLoadStoreOnCond]>; +} + // Record that INSN performs insertion TYPE into a register of class CLS. // The inserted operand is loaded using LOAD from an address of mode MODE. multiclass InsertMem<string type, Instruction insn, RegisterOperand cls, |