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; 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*
define i8* @_foo() {
entry:
; CHECK: foo:
%size = alloca i32, align 4
%0 = load i8** @__bar, align 4
%1 = icmp eq i8* %0, null
br i1 %1, label %bb1, label %bb3
; CHECK: bne
bb1:
store i32 1026, i32* %size, align 4
%2 = alloca [1026 x i8], align 1
; CHECK: mov [[R0:r[0-9]+]], sp
; CHECK: adds {{r[0-9]+}}, [[R0]], {{r[0-9]+}}
%3 = getelementptr inbounds [1026 x i8]* %2, i32 0, i32 0
%4 = call i32 @_called_func(i8* %3, i32* %size) nounwind
%5 = icmp eq i32 %4, 0
br i1 %5, label %bb2, label %bb3
bb2:
%6 = call i8* @strdup(i8* %3) nounwind
store i8* %6, i8** @__baz, align 4
br label %bb3
bb3:
%.0 = phi i8* [ %0, %entry ], [ %6, %bb2 ], [ %3, %bb1 ]
; CHECK: subs r4, #5
; CHECK-NEXT: mov sp, r4
; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
ret i8* %.0
}
declare noalias i8* @strdup(i8* nocapture) nounwind
declare i32 @_called_func(i8*, i32*) nounwind
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