llvm-mirror/test/CodeGen/AArch64/sponentry.ll
Francis Visoiu Mistrih f7ea499702 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 10:55:55 +00:00

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