mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
f7ea499702
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
53 lines
1.2 KiB
LLVM
53 lines
1.2 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=i386-apple-darwin -frame-pointer=all | FileCheck %s -check-prefix=32
|
|
; RUN: llc -verify-machineinstrs < %s -mtriple=x86_64-apple-darwin -frame-pointer=all | FileCheck %s -check-prefix=64
|
|
|
|
; Tail call should not use ebp / rbp after it's popped. Use esp / rsp.
|
|
|
|
define void @t1(i8* nocapture %value) nounwind {
|
|
entry:
|
|
; 32-LABEL: t1:
|
|
; 32: jmpl *4(%esp)
|
|
|
|
; 64-LABEL: t1:
|
|
; 64: jmpq *%rdi
|
|
%0 = bitcast i8* %value to void ()*
|
|
tail call void %0() nounwind
|
|
ret void
|
|
}
|
|
|
|
define void @t2(i32 %a, i8* nocapture %value) nounwind {
|
|
entry:
|
|
; 32-LABEL: t2:
|
|
; 32: jmpl *8(%esp)
|
|
|
|
; 64-LABEL: t2:
|
|
; 64: jmpq *%rsi
|
|
%0 = bitcast i8* %value to void ()*
|
|
tail call void %0() nounwind
|
|
ret void
|
|
}
|
|
|
|
define void @t3(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i8* nocapture %value) nounwind {
|
|
entry:
|
|
; 32-LABEL: t3:
|
|
; 32: jmpl *28(%esp)
|
|
|
|
; 64-LABEL: t3:
|
|
; 64: jmpq *8(%rsp)
|
|
%0 = bitcast i8* %value to void ()*
|
|
tail call void %0() nounwind
|
|
ret void
|
|
}
|
|
|
|
define void @t4(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i8* nocapture %value) nounwind {
|
|
entry:
|
|
; 32-LABEL: t4:
|
|
; 32: jmpl *32(%esp)
|
|
|
|
; 64-LABEL: t4:
|
|
; 64: jmpq *16(%rsp)
|
|
%0 = bitcast i8* %value to void ()*
|
|
tail call void %0() nounwind
|
|
ret void
|
|
}
|