Change allowsUnalignedMemoryAccesses to take type argument since some targets

support unaligned mem access only for certain types. (Should it be size
instead?)

ARM v7 supports unaligned access for i16 and i32, some v6 variants support it
as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79127 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 27 insertions, 12 deletions

diff --git a/test/CodeGen/ARM/unaligned_load_store.ll b/test/CodeGen/ARM/unaligned_load_store.ll
index dad1897..6fd9c2a 100644
--- a/test/CodeGen/ARM/unaligned_load_store.ll
+++ b/test/CodeGen/ARM/unaligned_load_store.ll
@@ -1,16 +1,31 @@
-; RUN: llvm-as < %s | \
-; RUN:   llc -march=arm -o %t -f
-; RUN: grep ldrb %t | count 4
-; RUN: grep strb %t | count 4
+; RUN: llvm-as < %s | llc -march=arm | FileCheck %s -check-prefix=GENERIC
+; RUN: llvm-as < %s | llc -mtriple=armv6-apple-darwin | FileCheck %s -check-prefix=DARWIN_V6
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v7a | FileCheck %s -check-prefix=V7
 
+; rdar://7113725
 
-	%struct.p = type <{ i8, i32 }>
-@t = global %struct.p <{ i8 1, i32 10 }>		; <%struct.p*> [#uses=1]
-@u = weak global %struct.p zeroinitializer		; <%struct.p*> [#uses=1]
-
-define i32 @main() {
+define arm_apcscc void @t(i8* nocapture %a, i8* nocapture %b) nounwind {
 entry:
-	%tmp3 = load i32* getelementptr (%struct.p* @t, i32 0, i32 1), align 1		; <i32> [#uses=2]
-	store i32 %tmp3, i32* getelementptr (%struct.p* @u, i32 0, i32 1), align 1
-	ret i32 %tmp3
+; GENERIC: t:
+; GENERIC: ldrb r2
+; GENERIC: ldrb r3
+; GENERIC: ldrb r12
+; GENERIC: ldrb r1
+; GENERIC: strb r1
+; GENERIC: strb r12
+; GENERIC: strb r3
+; GENERIC: strb r2
+
+; DARWIN_V6: t:
+; DARWIN_V6: ldr r1
+; DARWIN_V6: str r1
+
+; V7: t:
+; V7: ldr r1
+; V7: str r1
+  %__src1.i = bitcast i8* %b to i32*              ; <i32*> [#uses=1]
+  %__dest2.i = bitcast i8* %a to i32*             ; <i32*> [#uses=1]
+  %tmp.i = load i32* %__src1.i, align 1           ; <i32> [#uses=1]
+  store i32 %tmp.i, i32* %__dest2.i, align 1
+  ret void
 }