mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-05 10:17:36 +00:00
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
105 lines
3.1 KiB
LLVM
105 lines
3.1 KiB
LLVM
; RUN: llc -mtriple=aarch64-windows-msvc -frame-pointer=all %s -o - | FileCheck %s
|
|
; RUN: llc -mtriple=aarch64-windows-msvc -fast-isel -frame-pointer=all %s -o - | FileCheck %s
|
|
; RUN: llc -mtriple=aarch64-windows-msvc %s -o - | FileCheck %s --check-prefix=NOFP
|
|
; RUN: llc -mtriple=aarch64-windows-msvc -fast-isel %s -o - | FileCheck %s --check-prefix=NOFP
|
|
|
|
@env2 = common dso_local global [24 x i64]* null, align 8
|
|
|
|
define dso_local void @bar() {
|
|
%1 = call i8* @llvm.sponentry()
|
|
%2 = load [24 x i64]*, [24 x i64]** @env2, align 8
|
|
%3 = getelementptr inbounds [24 x i64], [24 x i64]* %2, i32 0, i32 0
|
|
%4 = bitcast i64* %3 to i8*
|
|
%5 = call i32 @_setjmpex(i8* %4, i8* %1) #2
|
|
ret void
|
|
}
|
|
|
|
; CHECK: bar:
|
|
; CHECK: mov x29, sp
|
|
; CHECK: add x1, x29, #16
|
|
; CEHCK: bl _setjmpex
|
|
|
|
; NOFP: str x30, [sp, #-16]!
|
|
; NOFP: add x1, sp, #16
|
|
|
|
define dso_local void @foo([24 x i64]*) {
|
|
%2 = alloca [24 x i64]*, align 8
|
|
%3 = alloca i32, align 4
|
|
%4 = alloca [100 x i32], align 4
|
|
store [24 x i64]* %0, [24 x i64]** %2, align 8
|
|
%5 = call i8* @llvm.sponentry()
|
|
%6 = load [24 x i64]*, [24 x i64]** %2, align 8
|
|
%7 = getelementptr inbounds [24 x i64], [24 x i64]* %6, i32 0, i32 0
|
|
%8 = bitcast i64* %7 to i8*
|
|
%9 = call i32 @_setjmpex(i8* %8, i8* %5)
|
|
store i32 %9, i32* %3, align 4
|
|
ret void
|
|
}
|
|
|
|
; CHECK: foo:
|
|
; CHECK: sub sp, sp, #448
|
|
; CHECK: add x29, sp, #432
|
|
; CHECK: add x1, x29, #16
|
|
; CEHCK: bl _setjmpex
|
|
|
|
; NOFP: sub sp, sp, #432
|
|
; NOFP: add x1, sp, #432
|
|
|
|
define dso_local void @var_args(i8*, ...) {
|
|
%2 = alloca i8*, align 8
|
|
%3 = alloca i8*, align 8
|
|
store i8* %0, i8** %2, align 8
|
|
%4 = bitcast i8** %3 to i8*
|
|
call void @llvm.va_start(i8* %4)
|
|
%5 = load i8*, i8** %3, align 8
|
|
%6 = getelementptr inbounds i8, i8* %5, i64 8
|
|
store i8* %6, i8** %3, align 8
|
|
%7 = bitcast i8* %5 to i32*
|
|
%8 = load i32, i32* %7, align 8
|
|
%9 = bitcast i8** %3 to i8*
|
|
call void @llvm.va_end(i8* %9)
|
|
%10 = call i8* @llvm.sponentry()
|
|
%11 = load [24 x i64]*, [24 x i64]** @env2, align 8
|
|
%12 = getelementptr inbounds [24 x i64], [24 x i64]* %11, i32 0, i32 0
|
|
%13 = bitcast i64* %12 to i8*
|
|
%14 = call i32 @_setjmpex(i8* %13, i8* %10) #3
|
|
ret void
|
|
}
|
|
|
|
; CHECK: var_args:
|
|
; CHECK: sub sp, sp, #96
|
|
; CHECK: add x29, sp, #16
|
|
; CHECK: add x1, x29, #80
|
|
; CEHCK: bl _setjmpex
|
|
|
|
; NOFP: sub sp, sp, #96
|
|
; NOFP: add x1, sp, #96
|
|
|
|
define dso_local void @manyargs(i64 %x1, i64 %x2, i64 %x3, i64 %x4, i64 %x5, i64 %x6, i64 %x7, i64 %x8, i64 %x9, i64 %x10) {
|
|
%1 = call i8* @llvm.sponentry()
|
|
%2 = load [24 x i64]*, [24 x i64]** @env2, align 8
|
|
%3 = getelementptr inbounds [24 x i64], [24 x i64]* %2, i32 0, i32 0
|
|
%4 = bitcast i64* %3 to i8*
|
|
%5 = call i32 @_setjmpex(i8* %4, i8* %1) #2
|
|
ret void
|
|
}
|
|
|
|
; CHECK: manyargs:
|
|
; CHECK: stp x29, x30, [sp, #-16]!
|
|
; CHECK: add x1, x29, #16
|
|
|
|
; NOFP: str x30, [sp, #-16]!
|
|
; NOFP: add x1, sp, #16
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare i8* @llvm.sponentry()
|
|
|
|
; Function Attrs: returns_twice
|
|
declare dso_local i32 @_setjmpex(i8*, i8*)
|
|
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.va_start(i8*) #1
|
|
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.va_end(i8*) #1
|