Switch to ImmLeaf (which can be used by FastISel) for a few more common ARM/Thumb2 patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130552 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/ARM/fast-isel.ll

@@ -1,8 +1,7 @@
-; RUN: llc < %s -O0 -fast-isel-abort -mtriple=armv7-apple-darwin
-; RUN: llc < %s -O0 -fast-isel-abort -mtriple=thumbv7-apple-darwin
+; RUN: llc < %s -O0 -fast-isel-abort -mtriple=armv7-apple-darwin | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -mtriple=thumbv7-apple-darwin | FileCheck %s --check-prefix=THUMB
 
 ; Very basic fast-isel functionality.
-
 define i32 @add(i32 %a, i32 %b) nounwind {
 entry:
   %a.addr = alloca i32, align 4
@@ -15,6 +14,7 @@ entry:
   ret i32 %add
 }
 
+; Check truncate to bool
 define void @test1(i32 %tmp) nounwind {
 entry:
 %tobool = trunc i32 %tmp to i1
@@ -26,6 +26,30 @@ br label %if.end
 
 if.end:                                           ; preds = %if.then, %entry
 ret void
-; CHECK: test1:
-; CHECK: tst	r0, #1
+; ARM: test1:
+; ARM: tst r0, #1
+; THUMB: test1:
+; THUMB: tst.w r0, #1
+}
+
+; Check some simple operations with immediates
+define void @test2(i32 %tmp, i32* %ptr) nounwind {
+; THUMB: test2:
+; ARM: test2:
+
+b1:
+  %b = add i32 %tmp, 4096
+  store i32 %b, i32* %ptr
+  br label %b2
+
+; THUMB: add.w {{.*}} #4096
+; ARM: add {{.*}} #1, #20
+
+b2:
+  %c = or i32 %tmp, 4
+  store i32 %c, i32* %ptr
+  ret void
+
+; THUMB: orr {{.*}} #4
+; ARM: orr {{.*}} #4
 }