Support segmented stacks on 64-bit FreeBSD.
This patch uses tcb_spare field in the tcb structure to store info.
Patch by Jyun-Yan You.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148041 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/segmented-stacks.ll b/test/CodeGen/X86/segmented-stacks.ll
index 4c4c542..3650304 100644
--- a/test/CodeGen/X86/segmented-stacks.ll
+++ b/test/CodeGen/X86/segmented-stacks.ll
@@ -3,6 +3,7 @@
; RUN: llc < %s -mtriple=i686-darwin -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32-Darwin
; RUN: llc < %s -mtriple=x86_64-darwin -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-Darwin
; RUN: llc < %s -mtriple=i686-mingw32 -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32-MinGW
+; RUN: llc < %s -mtriple=x86_64-freebsd -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-FreeBSD
; We used to crash with filetype=obj
; RUN: llc < %s -mtriple=i686-linux -segmented-stacks -filetype=obj
@@ -10,6 +11,7 @@
; RUN: llc < %s -mtriple=i686-darwin -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=x86_64-darwin -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=i686-mingw32 -segmented-stacks -filetype=obj
+; RUN: llc < %s -mtriple=x86_64-freebsd -segmented-stacks -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
@@ -70,6 +72,16 @@
; X32-MinGW-NEXT: calll ___morestack
; X32-MinGW-NEXT: ret
+; X64-FreeBSD: test_basic:
+
+; X64-FreeBSD: cmpq %fs:24, %rsp
+; X64-FreeBSD-NEXT: ja .LBB0_2
+
+; X64-FreeBSD: movabsq $40, %r10
+; X64-FreeBSD-NEXT: movabsq $0, %r11
+; X64-FreeBSD-NEXT: callq __morestack
+; X64-FreeBSD-NEXT: ret
+
}
define i32 @test_nested(i32 * nest %closure, i32 %other) {
@@ -122,6 +134,16 @@
; X32-MinGW-NEXT: calll ___morestack
; X32-MinGW-NEXT: ret
+; X64-FreeBSD: cmpq %fs:24, %rsp
+; X64-FreeBSD-NEXT: ja .LBB1_2
+
+; X64-FreeBSD: movq %r10, %rax
+; X64-FreeBSD-NEXT: movabsq $0, %r10
+; X64-FreeBSD-NEXT: movabsq $0, %r11
+; X64-FreeBSD-NEXT: callq __morestack
+; X64-FreeBSD-NEXT: ret
+; X64-FreeBSD-NEXT: movq %rax, %r10
+
}
define void @test_large() {
@@ -175,6 +197,15 @@
; X32-MinGW-NEXT: calll ___morestack
; X32-MinGW-NEXT: ret
+; X64-FreeBSD: leaq -40008(%rsp), %r11
+; X64-FreeBSD-NEXT: cmpq %fs:24, %r11
+; X64-FreeBSD-NEXT: ja .LBB2_2
+
+; X64-FreeBSD: movabsq $40008, %r10
+; X64-FreeBSD-NEXT: movabsq $0, %r11
+; X64-FreeBSD-NEXT: callq __morestack
+; X64-FreeBSD-NEXT: ret
+
}
define fastcc void @test_fastcc() {
@@ -233,6 +264,16 @@
; X32-MinGW-NEXT: calll ___morestack
; X32-MinGW-NEXT: ret
+; X64-FreeBSD: test_fastcc:
+
+; X64-FreeBSD: cmpq %fs:24, %rsp
+; X64-FreeBSD-NEXT: ja .LBB3_2
+
+; X64-FreeBSD: movabsq $40, %r10
+; X64-FreeBSD-NEXT: movabsq $0, %r11
+; X64-FreeBSD-NEXT: callq __morestack
+; X64-FreeBSD-NEXT: ret
+
}
define fastcc void @test_fastcc_large() {
@@ -296,6 +337,17 @@
; X32-MinGW-NEXT: calll ___morestack
; X32-MinGW-NEXT: ret
+; X64-FreeBSD: test_fastcc_large:
+
+; X64-FreeBSD: leaq -40008(%rsp), %r11
+; X64-FreeBSD-NEXT: cmpq %fs:24, %r11
+; X64-FreeBSD-NEXT: ja .LBB4_2
+
+; X64-FreeBSD: movabsq $40008, %r10
+; X64-FreeBSD-NEXT: movabsq $0, %r11
+; X64-FreeBSD-NEXT: callq __morestack
+; X64-FreeBSD-NEXT: ret
+
}
define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) {