vendor/llvm/llvm-trunk-r290819

1 files changed, 29 insertions, 0 deletions

diff --git a/test/CodeGen/AArch64/branch-relax-alignment.ll b/test/CodeGen/AArch64/branch-relax-alignment.ll
new file mode 100644
index 000000000000..7135dff7f573
--- /dev/null
+++ b/test/CodeGen/AArch64/branch-relax-alignment.ll
@@ -0,0 +1,29 @@
+; RUN: llc -mtriple=aarch64-apple-darwin -aarch64-bcc-offset-bits=4 -align-all-nofallthru-blocks=4 < %s | FileCheck %s
+
+; Long branch is assumed because the block has a higher alignment
+; requirement than the function.
+
+; CHECK-LABEL: invert_bcc_block_align_higher_func:
+; CHECK: b.eq [[JUMP_BB1:LBB[0-9]+_[0-9]+]]
+; CHECK-NEXT: b [[JUMP_BB2:LBB[0-9]+_[0-9]+]]
+
+; CHECK: [[JUMP_BB1]]:
+; CHECK: ret
+; CHECK: .p2align 4
+
+; CHECK: [[JUMP_BB2]]:
+; CHECK: ret
+define i32 @invert_bcc_block_align_higher_func(i32 %x, i32 %y) align 4 #0 {
+  %1 = icmp eq i32 %x, %y
+  br i1 %1, label %bb1, label %bb2
+
+bb2:
+  store volatile i32 9, i32* undef
+  ret i32 1
+
+bb1:
+  store volatile i32 42, i32* undef
+  ret i32 0
+}
+
+attributes #0 = { nounwind }