mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-28 04:33:05 +00:00
e5a81a130f
This prevents the emission of DAG-generated vreg definitions after a tail call be dropping them entirely (on the grounds that nothing could use them anyway, and they interfere with O0 CodeGen). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185754 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
405 B
LLVM
17 lines
405 B
LLVM
; RUN: llc -mtriple=thumbv7-linux-gnueabi -O0 -arm-tail-calls < %s | FileCheck %s
|
|
|
|
; Primarily a non-crash test: Thumbv7 Linux does not have FastISel support,
|
|
; which led (via a convoluted route) to DAG nodes after a TC_RETURN that
|
|
; couldn't possibly work.
|
|
|
|
declare i8* @g(i8*)
|
|
|
|
define i8* @f(i8* %a) {
|
|
entry:
|
|
%0 = tail call i8* @g(i8* %a)
|
|
ret i8* %0
|
|
; CHECK: b g
|
|
; CHECK-NOT: ldr
|
|
; CHECK-NOT: str
|
|
}
|