Use movt/movw pair to materialize 32 bit constants on ARMv6T2+.

This should be better than single load from constpool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82948 91177308-0d34-0410-b5e6-96231b3b80d8
2026-04-26 12:20:42 +00:00 · 2009-09-27 23:52:58 +00:00
parent 1edaef62a4
commit 6a2fa325c1
5 changed files with 77 additions and 40 deletions
@@ -0,0 +1,9 @@
+; RUN: llc < %s -march=arm -mattr=+thumb2 | FileCheck %s
+
+define i32 @f6(i32 %a) {
+; CHECK:f6
+; CHECK: movw r0, #1123
+; CHECK: movt r0, #1000
+    %tmp = add i32 0, 65537123
+    ret i32 %tmp
+}