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Move the segmented stack switch to a function attribute

Browse Source 
This removes the -segmented-stacks command line flag in favor of a
per-function "split-stack" attribute.

Patch by Luqman Aden and Alex Crichton!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205997 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
2014-04-10 22:58:43 +00:00
parent ee66766568
commit bc1fd917f0
17 changed files with 136 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
test/CodeGen/ARM/debug-segmented-stacks.ll
View File

@@ -1,11 +1,11 @@
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -verify-machineinstrs -filetype=asm | FileCheck %s -check-prefix=ARM-linux
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -verify-machineinstrs -filetype=asm | FileCheck %s -check-prefix=ARM-linux
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -filetype=obj
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
define void @test_basic() {
define void @test_basic() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -78,3 +78,5 @@ define void @test_basic() {
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
attributes #0 = { "split-stack" }

12
test/CodeGen/ARM/segmented-stacks-dynamic.ll
View File

@@ -1,12 +1,12 @@
; RUN: llc < %s -mtriple=arm-linux-androideabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux
; RUN: llc < %s -mtriple=arm-linux-androideabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-androideabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux
; RUN: llc < %s -mtriple=arm-linux-androideabi -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
define i32 @test_basic(i32 %l) {
define i32 @test_basic(i32 %l) #0 {
%mem = alloca i32, i32 %l
call void @dummy_use (i32* %mem, i32 %l)
%terminate = icmp eq i32 %l, 0
@@ -60,3 +60,5 @@ false:
; ARM-android: pop {r4, r5}
}
attributes #0 = { "split-stack" }

20
test/CodeGen/ARM/segmented-stacks.ll
View File

@@ -1,15 +1,15 @@
; RUN: llc < %s -mtriple=arm-linux-androideabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux
; RUN: llc < %s -mtriple=arm-linux-androideabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux
; We used to crash with filetype=obj
; RUN: llc < %s -mtriple=arm-linux-androideabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-androideabi -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
define void @test_basic() {
define void @test_basic() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -54,7 +54,7 @@ define void @test_basic() {
}
define i32 @test_nested(i32 * nest %closure, i32 %other) {
define i32 @test_nested(i32 * nest %closure, i32 %other) #0 {
%addend = load i32 * %closure
%result = add i32 %other, %addend
ret i32 %result
@@ -99,7 +99,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) {
}
define void @test_large() {
define void @test_large() #0 {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void
@@ -144,7 +144,7 @@ define void @test_large() {
}
define fastcc void @test_fastcc() {
define fastcc void @test_fastcc() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -189,7 +189,7 @@ define fastcc void @test_fastcc() {
}
define fastcc void @test_fastcc_large() {
define fastcc void @test_fastcc_large() #0 {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void
@@ -233,3 +233,5 @@ define fastcc void @test_fastcc_large() {
; ARM-android: pop {r4, r5}
}
attributes #0 = { "split-stack" }

12
test/CodeGen/Thumb/segmented-stacks-dynamic.ll
View File

@@ -1,12 +1,12 @@
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-linux
; RUN: llc < %s -mtriple=thumb-linux-androideabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=thumb-linux-androideabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-linux
; RUN: llc < %s -mtriple=thumb-linux-androideabi -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -filetype=obj
; RUN: llc < %s -mtriple=thumb-linux-androideabi -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
define i32 @test_basic(i32 %l) {
define i32 @test_basic(i32 %l) #0 {
%mem = alloca i32, i32 %l
call void @dummy_use (i32* %mem, i32 %l)
%terminate = icmp eq i32 %l, 0
@@ -61,3 +61,5 @@ false:
; Thumb-android: pop {r4, r5}
}
attributes #0 = { "split-stack" }

20
test/CodeGen/Thumb/segmented-stacks.ll
View File

@@ -1,13 +1,13 @@
; RUN: llc < %s -mtriple=thumb-linux-androideabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-linux
; RUN: llc < %s -mtriple=thumb-linux-androideabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=thumb-linux-androideabi -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-linux
; RUN: llc < %s -mtriple=thumb-linux-androideabi -filetype=obj
; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
define void @test_basic() {
define void @test_basic() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -54,7 +54,7 @@ define void @test_basic() {
}
define i32 @test_nested(i32 * nest %closure, i32 %other) {
define i32 @test_nested(i32 * nest %closure, i32 %other) #0 {
%addend = load i32 * %closure
%result = add i32 %other, %addend
ret i32 %result
@@ -101,7 +101,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) {
}
define void @test_large() {
define void @test_large() #0 {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void
@@ -150,7 +150,7 @@ define void @test_large() {
}
define fastcc void @test_fastcc() {
define fastcc void @test_fastcc() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -197,7 +197,7 @@ define fastcc void @test_fastcc() {
}
define fastcc void @test_fastcc_large() {
define fastcc void @test_fastcc_large() #0 {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void
@@ -245,3 +245,5 @@ define fastcc void @test_fastcc_large() {
; Thumb-linux: pop {r4, r5}
}
attributes #0 = { "split-stack" }

8
test/CodeGen/Thumb2/segmented-stacks.ll
View File

@@ -1,11 +1,11 @@
; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android
; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android
; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
define void @test_basic() {
define void @test_basic() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -30,3 +30,5 @@ define void @test_basic() {
; Thumb-android: pop {r4, r5}
}
attributes #0 = { "split-stack" }

12
test/CodeGen/X86/segmented-stacks-dynamic.ll
View File

@@ -1,12 +1,12 @@
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -verify-machineinstrs | FileCheck %s -check-prefix=X32
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -verify-machineinstrs | FileCheck %s -check-prefix=X64
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
define i32 @test_basic(i32 %l) {
define i32 @test_basic(i32 %l) #0 {
%mem = alloca i32, i32 %l
call void @dummy_use (i32* %mem, i32 %l)
%terminate = icmp eq i32 %l, 0
@@ -62,3 +62,5 @@ false:
; X64: movq %rax, %rdi
}
attributes #0 = { "split-stack" }

46
test/CodeGen/X86/segmented-stacks.ll
View File

@@ -1,23 +1,23 @@
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32-Linux
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-Linux
; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32-Darwin
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-Darwin
; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32-MinGW
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-FreeBSD
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-MinGW
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -verify-machineinstrs | FileCheck %s -check-prefix=X32-Linux
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -verify-machineinstrs | FileCheck %s -check-prefix=X64-Linux
; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -verify-machineinstrs | FileCheck %s -check-prefix=X32-Darwin
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -verify-machineinstrs | FileCheck %s -check-prefix=X64-Darwin
; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -verify-machineinstrs | FileCheck %s -check-prefix=X32-MinGW
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -verify-machineinstrs | FileCheck %s -check-prefix=X64-FreeBSD
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -verify-machineinstrs | FileCheck %s -check-prefix=X64-MinGW
; We used to crash with filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -segmented-stacks -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -filetype=obj
; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -filetype=obj
; RUN: not llc < %s -mcpu=generic -mtriple=x86_64-solaris -segmented-stacks 2> %t.log
; RUN: not llc < %s -mcpu=generic -mtriple=x86_64-solaris 2> %t.log
; RUN: FileCheck %s -input-file=%t.log -check-prefix=X64-Solaris
; RUN: not llc < %s -mcpu=generic -mtriple=i686-freebsd -segmented-stacks 2> %t.log
; RUN: not llc < %s -mcpu=generic -mtriple=i686-freebsd 2> %t.log
; RUN: FileCheck %s -input-file=%t.log -check-prefix=X32-FreeBSD
; X64-Solaris: Segmented stacks not supported on this platform
@@ -26,7 +26,7 @@
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
define void @test_basic() {
define void @test_basic() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -104,7 +104,7 @@ define void @test_basic() {
}
define i32 @test_nested(i32 * nest %closure, i32 %other) {
define i32 @test_nested(i32 * nest %closure, i32 %other) #0 {
%addend = load i32 * %closure
%result = add i32 %other, %addend
ret i32 %result
@@ -177,7 +177,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) {
}
define void @test_large() {
define void @test_large() #0 {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void
@@ -249,7 +249,7 @@ define void @test_large() {
}
define fastcc void @test_fastcc() {
define fastcc void @test_fastcc() #0 {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void
@@ -327,7 +327,7 @@ define fastcc void @test_fastcc() {
}
define fastcc void @test_fastcc_large() {
define fastcc void @test_fastcc_large() #0 {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void
@@ -412,7 +412,7 @@ define fastcc void @test_fastcc_large() {
}
define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) {
define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) #0 {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 %a)
ret void
@@ -434,3 +434,5 @@ define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) {
; X32-Darwin-NEXT: ret
}
attributes #0 = { "split-stack" }