[ARM] Add OptMinSize to ARMSubtarget
In many places in the backend, we like to know whether we're
optimising for code size and this is performed by checking the
current machine function attributes. A subtarget is created on a
per-function basis, so it's possible to know when we're compiling for
code size on construction so record this in the new object.
Differential Revision: https://reviews.llvm.org/D57812
llvm-svn: 353501
diff --git a/llvm/lib/Target/ARM/ARMFastISel.cpp b/llvm/lib/Target/ARM/ARMFastISel.cpp
index cc1849f..cd01b70 100644
--- a/llvm/lib/Target/ARM/ARMFastISel.cpp
+++ b/llvm/lib/Target/ARM/ARMFastISel.cpp
@@ -497,7 +497,7 @@
}
unsigned ResultReg = 0;
- if (Subtarget->useMovt(*FuncInfo.MF))
+ if (Subtarget->useMovt())
ResultReg = fastEmit_i(VT, VT, ISD::Constant, CI->getZExtValue());
if (ResultReg)
@@ -555,7 +555,7 @@
bool IsPositionIndependent = isPositionIndependent();
// Use movw+movt when possible, it avoids constant pool entries.
// Non-darwin targets only support static movt relocations in FastISel.
- if (Subtarget->useMovt(*FuncInfo.MF) &&
+ if (Subtarget->useMovt() &&
(Subtarget->isTargetMachO() || !IsPositionIndependent)) {
unsigned Opc;
unsigned char TF = 0;