Merging r259740:

[oota-llvm.git] / test / CodeGen / Thumb2 / thumb2-uxt_rot.ll

diff --git a/test/CodeGen/Thumb2/thumb2-uxt_rot.ll b/test/CodeGen/Thumb2/thumb2-uxt_rot.ll
index b8e43812ed991618327830aeb4b6a656897d52ff..e091a6529cd17b79216a820df80c617b3fac3281 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-uxt_rot.ll
+++ b/test/CodeGen/Thumb2/thumb2-uxt_rot.ll
@@ -1,24 +1,31 @@
-; RUN: llc < %s -march=thumb -mattr=+thumb2,+t2xtpk | FileCheck %s
+; RUN: llc -mtriple=thumb-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s --check-prefix=A8
+; RUN: llc -mtriple=thumb-eabi -mcpu=cortex-m3 %s -o - | FileCheck %s --check-prefix=M3
+; rdar://11318438
 
-define i8 @test1(i32 %A.u) zeroext {
-; CHECK: test1
-; CHECK: uxtb r0, r0
+define zeroext i8 @test1(i32 %A.u)  {
+; A8-LABEL: 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 {
-; CHECK: test2
-; CHECK: uxtab  r0, r0, r1
+define zeroext i32 @test2(i32 %A.u, i32 %B.u)  {
+; A8-LABEL: test2:
+; A8: uxtab  r0, r0, r1
+
+; M3-LABEL: 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 {
-; CHECK: test3
-; CHECK: uxth.w r0, r0, ror #8
+define zeroext i32 @test3(i32 %A.u)  {
+; A8-LABEL: test3:
+; A8: ubfx  r0, r0, #8, #16
     %B.u = lshr i32 %A.u, 8
     %C.u = shl i32 %A.u, 24
     %D.u = or i32 %B.u, %C.u
@@ -26,3 +33,25 @@ define i32 @test3(i32 %A.u) zeroext {
     %F.u = zext i16 %E.u to i32
     ret i32 %F.u
 }
+
+define i32 @test4(i32 %A, i32 %X) {
+; A8-LABEL: test4:
+; A8: uxtab r0, r0, r1, ror #16
+  %X.hi = lshr i32 %X, 16
+  %X.trunc = trunc i32 %X.hi to i8
+  %addend = zext i8 %X.trunc to i32
+
+  %sum = add i32 %A, %addend
+  ret i32 %sum
+}
+
+define i32 @test5(i32 %A, i32 %X) {
+; A8-LABEL: test5:
+; A8: uxtah r0, r0, r1, ror #8
+  %X.hi = lshr i32 %X, 8
+  %X.trunc = trunc i32 %X.hi to i16
+  %addend = zext i16 %X.trunc to i32
+
+  %sum = add i32 %A, %addend
+  ret i32 %sum
+}