mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-22 10:29:35 +00:00
Windows on ARM uses R11 for the frame pointer even though the environment is a pure Thumb-2, thumb-only environment. Replicate this behaviour to improve Windows ABI compatibility. This register is used for fast stack walking, and thus is part of the Windows ABI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209085 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; RUN: llc -mtriple arm-eabi -disable-fp-elim -filetype asm -o - %s \
|
|
; RUN: | FileCheck -check-prefix CHECK-ARM %s
|
|
|
|
; RUN: llc -mtriple thumb-eabi -disable-fp-elim -filetype asm -o - %s \
|
|
; RUN: | FileCheck -check-prefix CHECK-THUMB %s
|
|
|
|
; RUN: llc -mtriple arm-darwin -disable-fp-elim -filetype asm -o - %s \
|
|
; RUN: | FileCheck -check-prefix CHECK-DARWIN-ARM %s
|
|
|
|
; RUN: llc -mtriple thumb-darwin -disable-fp-elim -filetype asm -o - %s \
|
|
; RUN: | FileCheck -check-prefix CHECK-DARWIN-THUMB %s
|
|
|
|
declare void @callee(i32)
|
|
|
|
define i32 @calleer(i32 %i) {
|
|
entry:
|
|
%i.addr = alloca i32, align 4
|
|
%j = alloca i32, align 4
|
|
store i32 %i, i32* %i.addr, align 4
|
|
%0 = load i32* %i.addr, align 4
|
|
%add = add nsw i32 %0, 1
|
|
store i32 %add, i32* %j, align 4
|
|
%1 = load i32* %j, align 4
|
|
call void @callee(i32 %1)
|
|
%2 = load i32* %j, align 4
|
|
%add1 = add nsw i32 %2, 1
|
|
ret i32 %add1
|
|
}
|
|
|
|
; CHECK-ARM: push {r11, lr}
|
|
; CHECK-ARM: mov r11, sp
|
|
|
|
; CHECK-THUMB: push {r4, r6, r7, lr}
|
|
; CHECK-THUMB: add r7, sp, #8
|
|
|
|
; CHECK-DARWIN-ARM: push {r7, lr}
|
|
; CHECK-DARWIN-THUMB: push {r4, r7, lr}
|
|
|