llvm/test/CodeGen/ARM/fast-isel-deadcode.ll
Tim Northover 8189e3d887 ARM: stop emitting blx instructions for most calls on MachO.
I'm really not sure why we were in the first place, it's the linker's job to
convert between BL/BLX as necessary. Even worse, using BLX left Thumb calls
that could be locally resolved completely unencodable since all offsets to BLX
are multiples of 4.

rdar://26182344

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269101 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-10 19:17:47 +00:00

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LLVM

; RUN: llc < %s -O0 -fast-isel-abort=1 -verify-machineinstrs -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
; Target-specific selector can't properly handle the double because it isn't
; being passed via a register, so the materialized arguments become dead code.
define i32 @main(i32 %argc, i8** %argv) nounwind {
entry:
; THUMB: main
call void @printArgsNoRet(i32 1, float 0x4000CCCCC0000000, i8 signext 99, double 4.100000e+00)
; THUMB: bl _printArgsNoRet
; THUMB-NOT: ldr
; THUMB-NOT: vldr
; THUMB-NOT: vmov
; THUMB-NOT: ldr
; THUMB-NOT: sxtb
; THUMB: movs r0, #0
; THUMB: pop
ret i32 0
}
declare void @printArgsNoRet(i32 %a1, float %a2, i8 signext %a3, double %a4)