llvm-project/llvm/test/CodeGen/ARM/phi.ll

24 lines
465 B
LLVM

; RUN: llc -march=arm -mattr=+v4t < %s | FileCheck %s
; <rdar://problem/8686347>
define i32 @test1(i1 %a, i32* %b) {
; CHECK: test1
entry:
br i1 %a, label %lblock, label %rblock
lblock:
%lbranch = getelementptr i32* %b, i32 1
br label %end
rblock:
%rbranch = getelementptr i32* %b, i32 1
br label %end
end:
; CHECK: ldr r0, [r1, #4]
%gep = phi i32* [%lbranch, %lblock], [%rbranch, %rblock]
%r = load i32* %gep
; CHECK-NEXT: bx lr
ret i32 %r
}