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https://github.com/c64scene-ar/llvm-6502.git
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bf3e78f572
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 \
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; RUN: | FileCheck -check-prefix CHECK-ARM %s
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; RUN: llc -mtriple thumb-eabi -disable-fp-elim -filetype asm -o - %s \
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; RUN: | FileCheck -check-prefix CHECK-THUMB %s
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; RUN: llc -mtriple arm-darwin -disable-fp-elim -filetype asm -o - %s \
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; RUN: | FileCheck -check-prefix CHECK-DARWIN-ARM %s
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; RUN: llc -mtriple thumb-darwin -disable-fp-elim -filetype asm -o - %s \
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; RUN: | FileCheck -check-prefix CHECK-DARWIN-THUMB %s
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declare void @callee(i32)
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define i32 @calleer(i32 %i) {
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entry:
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%i.addr = alloca i32, align 4
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%j = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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%0 = load i32* %i.addr, align 4
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%add = add nsw i32 %0, 1
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store i32 %add, i32* %j, align 4
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%1 = load i32* %j, align 4
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call void @callee(i32 %1)
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%2 = load i32* %j, align 4
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%add1 = add nsw i32 %2, 1
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ret i32 %add1
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}
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; CHECK-ARM: push {r11, lr}
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; CHECK-ARM: mov r11, sp
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; CHECK-THUMB: push {r4, r6, r7, lr}
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; CHECK-THUMB: add r7, sp, #8
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; CHECK-DARWIN-ARM: push {r7, lr}
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; CHECK-DARWIN-THUMB: push {r4, r7, lr}
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