-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep uxtb | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep uxtab | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep uxth | count 1
+; RUN: llc < %s -march=thumb -mcpu=cortex-a8 | FileCheck %s --check-prefix=A8
+; RUN: llc < %s -march=thumb -mcpu=cortex-m3 | FileCheck %s --check-prefix=M3
+; rdar://11318438
-define i8 @test1(i32 %A.u) zeroext {
+define zeroext i8 @test1(i32 %A.u) {
+; A8: test1
+; A8: uxtb r0, r0
%B.u = trunc i32 %A.u to i8
ret i8 %B.u
}
-define i32 @test2(i32 %A.u, i32 %B.u) zeroext {
+define zeroext i32 @test2(i32 %A.u, i32 %B.u) {
+; A8: test2
+; A8: uxtab r0, r0, r1
+
+; M3: test2
+; M3: uxtb r1, r1
+; M3-NOT: uxtab
+; M3: add r0, r1
%C.u = trunc i32 %B.u to i8
%D.u = zext i8 %C.u to i32
%E.u = add i32 %A.u, %D.u
ret i32 %E.u
}
-define i32 @test3(i32 %A.u) zeroext {
+define zeroext i32 @test3(i32 %A.u) {
+; A8: test3
+; A8: uxth.w r0, r0, ror #8
%B.u = lshr i32 %A.u, 8
%C.u = shl i32 %A.u, 24
%D.u = or i32 %B.u, %C.u