mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 12:43:36 +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
29 lines
2.3 KiB
LLVM
29 lines
2.3 KiB
LLVM
; RUN: llc < %s -O0 -relocation-model=pic -frame-pointer=all -no-integrated-as
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:64-n32"
|
|
target triple = "armv6-apple-darwin10"
|
|
|
|
%struct0 = type { i32, i32 }
|
|
|
|
; This function would crash RegAllocFast because it tried to spill %CPSR.
|
|
define arm_apcscc void @clobber_cc() nounwind noinline ssp {
|
|
entry:
|
|
%asmtmp = call %struct0 asm sideeffect "...", "=&r,=&r,r,Ir,r,~{cc},~{memory}"(i32* undef, i32 undef, i32 1) nounwind ; <%0> [#uses=0]
|
|
unreachable
|
|
}
|
|
|
|
@.str523 = private constant [256 x i8] c"<Unknown>\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00", align 4 ; <[256 x i8]*> [#uses=1]
|
|
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind
|
|
|
|
; This function uses the scavenger for an ADDri instruction.
|
|
; ARMBaseRegisterInfo::estimateRSStackSizeLimit must return a 255 limit.
|
|
define arm_apcscc void @scavence_ADDri() nounwind {
|
|
entry:
|
|
%letter = alloca i8 ; <i8*> [#uses=0]
|
|
%prodvers = alloca [256 x i8] ; <[256 x i8]*> [#uses=1]
|
|
%buildver = alloca [256 x i8] ; <[256 x i8]*> [#uses=0]
|
|
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 undef, i8* align 1 getelementptr inbounds ([256 x i8], [256 x i8]* @.str523, i32 0, i32 0), i32 256, i1 false)
|
|
%prodvers2 = bitcast [256 x i8]* %prodvers to i8* ; <i8*> [#uses=1]
|
|
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 %prodvers2, i8* align 1 getelementptr inbounds ([256 x i8], [256 x i8]* @.str523, i32 0, i32 0), i32 256, i1 false)
|
|
unreachable
|
|
}
|