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llvm-mirror/test/CodeGen/X86/sjlj.ll

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Add __builtin_setjmp/_longjmp supprt in X86 backend - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989
2012-10-15 22:39:43 +00:00
; RUN: llc < %s -mtriple=i386-pc-linux -mcpu=corei7 -relocation-model=static | FileCheck --check-prefix=X86 %s
Fix setjmp on models with non-Small code model nor non-Static relocation model - MBB address is only valid as an immediate value in Small & Static code/relocation models. On other models, LEA is needed to load IP address of the restore MBB. - A minor fix of MBB in MC lowering is added as well to enable target relocation flag being propagated into MC. llvm-svn: 166084
2012-10-17 02:22:27 +00:00
; RUN: llc < %s -mtriple=i386-pc-linux -mcpu=corei7 -relocation-model=pic | FileCheck --check-prefix=PIC86 %s
; RUN: llc < %s -mtriple=x86_64-pc-linux -mcpu=corei7 -relocation-model=static | FileCheck --check-prefix=X64 %s
; RUN: llc < %s -mtriple=x86_64-pc-linux -mcpu=corei7 -relocation-model=pic | FileCheck --check-prefix=PIC64 %s
Add __builtin_setjmp/_longjmp supprt in X86 backend - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989
2012-10-15 22:39:43 +00:00
@buf = internal global [5 x i8*] zeroinitializer
declare i8* @llvm.frameaddress(i32) nounwind readnone
declare i8* @llvm.stacksave() nounwind
declare i32 @llvm.eh.sjlj.setjmp(i8*) nounwind
declare void @llvm.eh.sjlj.longjmp(i8*) nounwind
define i32 @sj0() nounwind {
%fp = tail call i8* @llvm.frameaddress(i32 0)
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator Similar to gep (r230786) and load (r230794) changes. Similar migration script can be used to update test cases, which successfully migrated all of LLVM and Polly, but about 4 test cases needed manually changes in Clang. (this script will read the contents of stdin and massage it into stdout - wrap it in the 'apply.sh' script shown in previous commits + xargs to apply it over a large set of test cases) import fileinput import sys import re rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL) def conv(match): line = match.group(1) line += match.group(4) line += ", " line += match.group(2) return line line = sys.stdin.read() off = 0 for match in re.finditer(rep, line): sys.stdout.write(line[off:match.start()]) sys.stdout.write(conv(match)) off = match.end() sys.stdout.write(line[off:]) llvm-svn: 232184
2015-03-13 18:20:45 +00:00
store i8* %fp, i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @buf, i64 0, i64 0), align 16
Add __builtin_setjmp/_longjmp supprt in X86 backend - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989
2012-10-15 22:39:43 +00:00
%sp = tail call i8* @llvm.stacksave()
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator Similar to gep (r230786) and load (r230794) changes. Similar migration script can be used to update test cases, which successfully migrated all of LLVM and Polly, but about 4 test cases needed manually changes in Clang. (this script will read the contents of stdin and massage it into stdout - wrap it in the 'apply.sh' script shown in previous commits + xargs to apply it over a large set of test cases) import fileinput import sys import re rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL) def conv(match): line = match.group(1) line += match.group(4) line += ", " line += match.group(2) return line line = sys.stdin.read() off = 0 for match in re.finditer(rep, line): sys.stdout.write(line[off:match.start()]) sys.stdout.write(conv(match)) off = match.end() sys.stdout.write(line[off:]) llvm-svn: 232184
2015-03-13 18:20:45 +00:00
store i8* %sp, i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @buf, i64 0, i64 2), align 16
Add __builtin_setjmp/_longjmp supprt in X86 backend - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989
2012-10-15 22:39:43 +00:00
%r = tail call i32 @llvm.eh.sjlj.setjmp(i8* bitcast ([5 x i8*]* @buf to i8*))
ret i32 %r
; X86: sj0
; x86: movl %ebp, buf
; X86: movl %esp, buf+8
Fix setjmp on models with non-Small code model nor non-Static relocation model - MBB address is only valid as an immediate value in Small & Static code/relocation models. On other models, LEA is needed to load IP address of the restore MBB. - A minor fix of MBB in MC lowering is added as well to enable target relocation flag being propagated into MC. llvm-svn: 166084
2012-10-17 02:22:27 +00:00
; x86: movl ${{.*LBB.*}}, buf+4
Add __builtin_setjmp/_longjmp supprt in X86 backend - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989
2012-10-15 22:39:43 +00:00
; X86: ret
Fix setjmp on models with non-Small code model nor non-Static relocation model - MBB address is only valid as an immediate value in Small & Static code/relocation models. On other models, LEA is needed to load IP address of the restore MBB. - A minor fix of MBB in MC lowering is added as well to enable target relocation flag being propagated into MC. llvm-svn: 166084
2012-10-17 02:22:27 +00:00
; PIC86: sj0
; PIC86: movl %ebp, buf@GOTOFF(%[[GOT:.*]])
; PIC86: movl %esp, buf@GOTOFF+8(%[[GOT]])
; PIC86: leal {{.*LBB.*}}@GOTOFF(%[[GOT]]), %[[LREG:.*]]
; PIC86: movl %[[LREG]], buf@GOTOFF+4
; PIC86: ret
Add __builtin_setjmp/_longjmp supprt in X86 backend - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989
2012-10-15 22:39:43 +00:00
; X64: sj0
; x64: movq %rbp, buf(%rip)
; x64: movq ${{.*LBB.*}}, buf+8(%rip)
; X64: movq %rsp, buf+16(%rip)
; X64: ret
Fix setjmp on models with non-Small code model nor non-Static relocation model - MBB address is only valid as an immediate value in Small & Static code/relocation models. On other models, LEA is needed to load IP address of the restore MBB. - A minor fix of MBB in MC lowering is added as well to enable target relocation flag being propagated into MC. llvm-svn: 166084
2012-10-17 02:22:27 +00:00
; PIC64: sj0
; PIC64: movq %rbp, buf(%rip)
; PIC64: movq %rsp, buf+16(%rip)
; PIC64: leaq {{.*LBB.*}}(%rip), %[[LREG:.*]]
; PIC64: movq %[[LREG]], buf+8(%rip)
; PIC64: ret
Add __builtin_setjmp/_longjmp supprt in X86 backend - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989
2012-10-15 22:39:43 +00:00
}
define void @lj0() nounwind {
tail call void @llvm.eh.sjlj.longjmp(i8* bitcast ([5 x i8*]* @buf to i8*))
unreachable
; X86: lj0
; X86: movl buf, %ebp
; X86: movl buf+4, %[[REG32:.*]]
; X86: movl buf+8, %esp
; X86: jmpl *%[[REG32]]
; X64: lj0
; X64: movq buf(%rip), %rbp
; X64: movq buf+8(%rip), %[[REG64:.*]]
; X64: movq buf+16(%rip), %rsp
; X64: jmpq *%[[REG64]]
}
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