}
// If we have T2 ops, we can materialize the address directly via movt/movw
- // pair. This is always cheaper in terms of performance, but uses at least 2
- // extra bytes.
- MachineFunction &MF = DAG.getMachineFunction();
- if (Subtarget->useMovt() &&
- !MF.getFunction()->hasFnAttr(Attribute::OptimizeForSize)) {
+ // pair. This is always cheaper.
+ if (Subtarget->useMovt()) {
++NumMovwMovt;
// FIXME: Once remat is capable of dealing with instructions with register
// operands, expand this into two nodes.
+++ /dev/null
-; RUN: llc < %s -mtriple=armv7-unknown-linux-eabi | FileCheck %s
-
-; Check that when optimizing for size, a literal pool load is used
-; instead of the (potentially faster) movw/movt pair when loading
-; a large constant.
-
-@x = global i32* inttoptr (i32 305419888 to i32*), align 4
-
-define i32 @f() optsize {
- ; CHECK: f:
- ; CHECK: ldr r{{.}}, {{.?}}LCPI{{.}}_{{.}}
- ; CHECK: ldr r{{.}}, [{{(pc, )?}}r{{.}}]
- ; CHECK: ldr r{{.}}, [r{{.}}]
- %1 = load i32** @x, align 4
- %2 = load i32* %1
- ret i32 %2
-}
-
-define i32 @g() {
- ; CHECK: g:
- ; CHECK: movw
- ; CHECK: movt
- %1 = load i32** @x, align 4
- %2 = load i32* %1
- ret i32 %2
-}