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llvm-project/llvm/test/CodeGen/ARM/macho-frame-offset.ll

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Replace "no-frame-pointer-*" function attributes with "frame-pointer" Part of the effort to refactoring frame pointer code generation. We used to use two function attributes "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" to represent three kinds of frame pointer usage: (all) frames use frame pointer, (non-leaf) frames use frame pointer, (none) frame use frame pointer. This CL makes the idea explicit by using only one enum function attribute "frame-pointer" Option "-frame-pointer=" replaces "-disable-fp-elim" for tools such as llc. "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" are still supported for easy migration to "frame-pointer". tests are mostly updated with // replace command line args ‘-disable-fp-elim=false’ with ‘-frame-pointer=none’ grep -iIrnl '\-disable-fp-elim=false' * | xargs sed -i '' -e "s/-disable-fp-elim=false/-frame-pointer=none/g" // replace command line args ‘-disable-fp-elim’ with ‘-frame-pointer=all’ grep -iIrnl '\-disable-fp-elim' * | xargs sed -i '' -e "s/-disable-fp-elim/-frame-pointer=all/g" Patch by Yuanfang Chen (tabloid.adroit)! Differential Revision: https://reviews.llvm.org/D56351 llvm-svn: 351049
2019-01-14 18:55:55 +08:00
; RUN: llc -mtriple thumbv7m-apple-macho -frame-pointer=all -o - %s | FileCheck %s
ARM: use callee-saved list in the order they're actually saved. When setting the frame pointer, the offset from SP is calculated based on the stack slot it gets allocated, but this slot is in turn based on the order of the CSR list so that list should match the order we actually save the registers in. Mostly it did, but in the edge-case of MachO AAPCS targets it was wrong. llvm-svn: 269459
2016-05-14 03:16:14 +08:00
define void @func() {
; CHECK-LABEL: func:
; CHECK: push {r6, r7, lr}
; CHECK: add r7, sp, #4
call void @bar()
call void asm sideeffect "", "~{r11}"()
ret void
}
declare void @bar()