| ; 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 |