RTABI chapter 4.3.4 specifies __eabi_mem* calls. Specifically, __eabi_memset accepts parameters (ptr, size, value) in a different order than GNU's memset (ptr, value, size), therefore the special lowering in AAPCS mode. Implementation by Evzen Muller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131868 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/memfunc.ll b/test/CodeGen/ARM/memfunc.ll
index 41d5944..032129d 100644
--- a/test/CodeGen/ARM/memfunc.ll
+++ b/test/CodeGen/ARM/memfunc.ll
@@ -1,10 +1,26 @@
-; RUN: llc < %s -march=arm
+; RUN: llc < %s -march=arm -o - | FileCheck %s
+; RUN: llc < %s -mtriple=arm-none-eabi -o - | FileCheck --check-prefix=EABI %s
+
+@from = common global [500 x i32] zeroinitializer, align 4
+@to = common global [500 x i32] zeroinitializer, align 4
define void @f() {
entry:
- call void @llvm.memmove.i32( i8* null, i8* null, i32 64, i32 0 )
- call void @llvm.memcpy.i32( i8* null, i8* null, i32 64, i32 0 )
- call void @llvm.memset.i32( i8* null, i8 64, i32 0, i32 0 )
+
+ ; CHECK: memmove
+ ; EABI: __aeabi_memmove
+ call void @llvm.memmove.i32( i8* bitcast ([500 x i32]* @from to i8*), i8* bitcast ([500 x i32]* @to to i8*), i32 500, i32 0 )
+
+ ; CHECK: memcpy
+ ; EABI: __aeabi_memcpy
+ call void @llvm.memcpy.i32( i8* bitcast ([500 x i32]* @from to i8*), i8* bitcast ([500 x i32]* @to to i8*), i32 500, i32 0 )
+
+ ; EABI memset swaps arguments
+ ; CHECK: mov r1, #0
+ ; CHECK: memset
+ ; EABI: mov r2, #0
+ ; EABI: __aeabi_memset
+ call void @llvm.memset.i32( i8* bitcast ([500 x i32]* @from to i8*), i8 0, i32 500, i32 0 )
unreachable
}