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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-07-08 09:35:23 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-07-08 09:35:23 +0000 |
| commit | dff0009d0ced62b92cb5900bc2203ec40142ba15 (patch) | |
| tree | d79c3350233490455c9b9c623ff5376369b3f1c2 /lib/Target/SystemZ/SystemZOperands.td | |
| parent | 12b701beea6f26d2305dc18cf09838da1d068006 (diff) | |
| download | llvm-dff0009d0ced62b92cb5900bc2203ec40142ba15.tar.gz llvm-dff0009d0ced62b92cb5900bc2203ec40142ba15.tar.bz2 llvm-dff0009d0ced62b92cb5900bc2203ec40142ba15.tar.xz | |
[SystemZ] Use MVC for memcpy
Use MVC for memcpy in cases where a single MVC is enough. Using MVC is
a win for longer copies too, but I'll leave that for later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185802 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/SystemZ/SystemZOperands.td')
| -rw-r--r-- | lib/Target/SystemZ/SystemZOperands.td | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/SystemZOperands.td b/lib/Target/SystemZ/SystemZOperands.td index 620876e7cb..9d79439228 100644 --- a/lib/Target/SystemZ/SystemZOperands.td +++ b/lib/Target/SystemZ/SystemZOperands.td @@ -219,6 +219,11 @@ def uimm8 : Immediate<i8, [{}], UIMM8, "U8Imm">; // i32 immediates //===----------------------------------------------------------------------===// +// Immediates for 8-bit lengths. +def imm32len8 : Immediate<i32, [{ + return isUInt<8>(N->getZExtValue() - 1); +}], NOOP_SDNodeXForm, "U32Imm">; + // Immediates for the lower and upper 16 bits of an i32, with the other // bits of the i32 being zero. def imm32ll16 : Immediate<i32, [{ |