; RUN: llc < %s -mtriple=thumbv6-apple-darwin | FileCheck %s
; RUN: llc < %s -mtriple=thumbv6-apple-darwin -regalloc=basic | FileCheck %s
-; rdar://8819685
@__bar = external hidden global i8*
@__baz = external hidden global i8*
+; rdar://8819685
define i8* @_foo() {
entry:
-; CHECK: foo:
+; CHECK-LABEL: foo:
%size = alloca i32, align 4
%0 = load i8** @__bar, align 4
declare noalias i8* @strdup(i8* nocapture) nounwind
declare i32 @_called_func(i8*, i32*) nounwind
+
+; Variable ending up at unaligned offset from sp (i.e. not a multiple of 4)
+define void @test_local_var_addr() {
+; CHECK-LABEL: test_local_var_addr:
+
+ %addr1 = alloca i8
+ %addr2 = alloca i8
+
+; CHECK: mov r0, sp
+; CHECK: adds r0, r0, #{{[0-9]+}}
+; CHECK: blx _take_ptr
+ call void @take_ptr(i8* %addr1)
+
+; CHECK: mov r0, sp
+; CHECK: adds r0, r0, #{{[0-9]+}}
+; CHECK: blx _take_ptr
+ call void @take_ptr(i8* %addr2)
+
+ ret void
+}
+
+; Simple variable ending up *at* sp.
+define void @test_simple_var() {
+; CHECK-LABEL: test_simple_var:
+
+ %addr32 = alloca i32
+ %addr8 = bitcast i32* %addr32 to i8*
+
+; CHECK: mov r0, sp
+; CHECK-NOT: adds r0
+; CHECK: blx _take_ptr
+ call void @take_ptr(i8* %addr8)
+ ret void
+}
+
+; Simple variable ending up at aligned offset from sp.
+define void @test_local_var_addr_aligned() {
+; CHECK-LABEL: test_local_var_addr_aligned:
+
+ %addr1.32 = alloca i32
+ %addr1 = bitcast i32* %addr1.32 to i8*
+ %addr2.32 = alloca i32
+ %addr2 = bitcast i32* %addr2.32 to i8*
+
+; CHECK: add r0, sp, #{{[0-9]+}}
+; CHECK: blx _take_ptr
+ call void @take_ptr(i8* %addr1)
+
+; CHECK: mov r0, sp
+; CHECK-NOT: add r0
+; CHECK: blx _take_ptr
+ call void @take_ptr(i8* %addr2)
+
+ ret void
+}
+
+; Simple variable ending up at aligned offset from sp.
+define void @test_local_var_big_offset() {
+; CHECK-LABEL: test_local_var_big_offset:
+ %addr1.32 = alloca i32, i32 257
+ %addr1 = bitcast i32* %addr1.32 to i8*
+ %addr2.32 = alloca i32, i32 257
+
+; CHECK: add [[RTMP:r[0-9]+]], sp, #1020
+; CHECL: add r0, [[RTMP]], #8
+; CHECK: blx _take_ptr
+ call void @take_ptr(i8* %addr1)
+
+ ret void
+}
+
+declare void @take_ptr(i8*)