[WebAssembly] Don't perform the returned-argument optimization on constants.

[oota-llvm.git] / test / CodeGen / ARM / rev.ll

diff --git a/test/CodeGen/ARM/rev.ll b/test/CodeGen/ARM/rev.ll
index 5739086267e689075a0de2c6b7eb771b67d4b7f5..f95f97105b9fc1b368b719c45626f878ead43f92 100644 (file)
--- a/test/CodeGen/ARM/rev.ll
+++ b/test/CodeGen/ARM/rev.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=arm -mattr=+v6 | FileCheck %s
+; RUN: llc -mtriple=arm-eabi -mattr=+v6 %s -o - | FileCheck %s
 
 define i32 @test1(i32 %X) nounwind {
 ; CHECK: test1
@@ -32,7 +32,7 @@ define i32 @test2(i32 %X) nounwind {
 ; rdar://9147637
 define i32 @test3(i16 zeroext %a) nounwind {
 entry:
-; CHECK: test3:
+; CHECK-LABEL: test3:
 ; CHECK: revsh r0, r0
   %0 = tail call i16 @llvm.bswap.i16(i16 %a)
   %1 = sext i16 %0 to i32
@@ -43,7 +43,7 @@ declare i16 @llvm.bswap.i16(i16) nounwind readnone
 
 define i32 @test4(i16 zeroext %a) nounwind {
 entry:
-; CHECK: test4:
+; CHECK-LABEL: test4:
 ; CHECK: revsh r0, r0
   %conv = zext i16 %a to i32
   %shr9 = lshr i16 %a, 8
@@ -67,3 +67,60 @@ entry:
   %or = or i32 %shr, %and
   ret i32 %or
 }
+
+; rdar://9609108
+define i32 @test6(i32 %x) nounwind readnone {
+entry:
+; CHECK: test6
+; CHECK: rev16 r0, r0
+  %and = shl i32 %x, 8
+  %shl = and i32 %and, 65280
+  %and2 = lshr i32 %x, 8
+  %shr11 = and i32 %and2, 255
+  %shr5 = and i32 %and2, 16711680
+  %shl9 = and i32 %and, -16777216
+  %or = or i32 %shr5, %shl9
+  %or6 = or i32 %or, %shr11
+  %or10 = or i32 %or6, %shl
+  ret i32 %or10
+}
+
+; rdar://9164521
+define i32 @test7(i32 %a) nounwind readnone {
+entry:
+; CHECK: test7
+; CHECK: rev r0, r0
+; CHECK: lsr r0, r0, #16
+  %and = lshr i32 %a, 8
+  %shr3 = and i32 %and, 255
+  %and2 = shl i32 %a, 8
+  %shl = and i32 %and2, 65280
+  %or = or i32 %shr3, %shl
+  ret i32 %or
+}
+
+define i32 @test8(i32 %a) nounwind readnone {
+entry:
+; CHECK: test8
+; CHECK: revsh r0, r0
+  %and = lshr i32 %a, 8
+  %shr4 = and i32 %and, 255
+  %and2 = shl i32 %a, 8
+  %or = or i32 %shr4, %and2
+  %sext = shl i32 %or, 16
+  %conv3 = ashr exact i32 %sext, 16
+  ret i32 %conv3
+}
+
+; rdar://10750814
+define zeroext i16 @test9(i16 zeroext %v) nounwind readnone {
+entry:
+; CHECK: test9
+; CHECK: rev16 r0, r0
+  %conv = zext i16 %v to i32
+  %shr4 = lshr i32 %conv, 8
+  %shl = shl nuw nsw i32 %conv, 8
+  %or = or i32 %shr4, %shl
+  %conv3 = trunc i32 %or to i16
+  ret i16 %conv3
+}