Fix PLD encoding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124458 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/MC/ARM/prefetch.ll b/test/MC/ARM/prefetch.ll
new file mode 100644
index 0000000..840a1a0
--- /dev/null
+++ b/test/MC/ARM/prefetch.ll
@@ -0,0 +1,58 @@
+; RUN: llc < %s -march=arm -mattr=+v7a,+mp -show-mc-encoding | FileCheck %s -check-prefix=ARM
+; RUN: llc < %s -march=thumb -mattr=+v7a -show-mc-encoding | FileCheck %s -check-prefix=T2
+; rdar://8924681
+
+define void @t1(i8* %ptr) nounwind {
+entry:
+; ARM: t1:
+; ARM: pldw [r0] @ encoding: [0x00,0xf0,0x90,0xf5]
+; ARM: pld [r0] @ encoding: [0x00,0xf0,0xd0,0xf5]
+
+; T2: t1:
+; T2: pld [r0] @ encoding: [0x90,0xf8,0x00,0xf0]
+ tail call void @llvm.prefetch( i8* %ptr, i32 1, i32 3 )
+ tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 3 )
+ ret void
+}
+
+define void @t2(i8* %ptr) nounwind {
+entry:
+; ARM: t2:
+; ARM: pld [r0, #1023] @ encoding: [0xff,0xf3,0xd0,0xf5]
+
+; T2: t2:
+; T2: pld [r0, #1023] @ encoding: [0x90,0xf8,0xff,0xf3]
+ %tmp = getelementptr i8* %ptr, i32 1023
+ tail call void @llvm.prefetch( i8* %tmp, i32 0, i32 3 )
+ ret void
+}
+
+define void @t3(i32 %base, i32 %offset) nounwind {
+entry:
+; ARM: t3:
+; ARM: pld [r0, r1, lsr #2] @ encoding: [0x21,0xf1,0xd0,0xf7]
+
+; T2: t3:
+; T2: pld [r0, r1] @ encoding: [0x10,0xf8,0x01,0xf0]
+ %tmp1 = lshr i32 %offset, 2
+ %tmp2 = add i32 %base, %tmp1
+ %tmp3 = inttoptr i32 %tmp2 to i8*
+ tail call void @llvm.prefetch( i8* %tmp3, i32 0, i32 3 )
+ ret void
+}
+
+define void @t4(i32 %base, i32 %offset) nounwind {
+entry:
+; ARM: t4:
+; ARM: pld [r0, r1, lsl #2] @ encoding: [0x01,0xf1,0xd0,0xf7]
+
+; T2: t4:
+; T2: pld [r0, r1, lsl #2] @ encoding: [0x10,0xf8,0x21,0xf0]
+ %tmp1 = shl i32 %offset, 2
+ %tmp2 = add i32 %base, %tmp1
+ %tmp3 = inttoptr i32 %tmp2 to i8*
+ tail call void @llvm.prefetch( i8* %tmp3, i32 0, i32 3 )
+ ret void
+}
+
+declare void @llvm.prefetch(i8*, i32, i32) nounwind