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llvm-project/llvm/test/CodeGen/X86/sibcall-win64.ll

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Don't sibcall between SysV and Win64 convention functions The shadow stack space expectations won't match. Fixes PR22709. llvm-svn: 230667
2015-02-27 03:43:20 +08:00
; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s
[AArch64] Extend CallingConv::X86_64_Win64 to AArch64 as well Rename the enum value from X86_64_Win64 to plain Win64. The symbol exposed in the textual IR is changed from 'x86_64_win64cc' to 'win64cc', but the numeric value is kept, keeping support for old bitcode. Differential Revision: https://reviews.llvm.org/D34474 llvm-svn: 308208
2017-07-18 04:05:19 +08:00
declare win64cc void @win64_callee(i32)
declare win64cc void (i32)* @win64_indirect()
declare win64cc void @win64_other(i32)
Don't sibcall between SysV and Win64 convention functions The shadow stack space expectations won't match. Fixes PR22709. llvm-svn: 230667
2015-02-27 03:43:20 +08:00
declare void @sysv_callee(i32)
[Target/X86] Don't use callee-saved registers in a Win64 tail call on non-Windows. Summary: A small bit that I missed when I updated the X86 backend to account for the Win64 calling convention on non-Windows. Now we don't use dead non-volatile registers when emitting a Win64 indirect tail call on non-Windows. Should fix PR23710. Test Plan: Added test for the correct behavior based on the case I posted to PR23710. Reviewers: rnk Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10258 llvm-svn: 239111
2015-06-05 06:50:05 +08:00
declare void (i32)* @sysv_indirect()
declare void @sysv_other(i32)
Don't sibcall between SysV and Win64 convention functions The shadow stack space expectations won't match. Fixes PR22709. llvm-svn: 230667
2015-02-27 03:43:20 +08:00
define void @sysv_caller(i32 %p1) {
entry:
[AArch64] Extend CallingConv::X86_64_Win64 to AArch64 as well Rename the enum value from X86_64_Win64 to plain Win64. The symbol exposed in the textual IR is changed from 'x86_64_win64cc' to 'win64cc', but the numeric value is kept, keeping support for old bitcode. Differential Revision: https://reviews.llvm.org/D34474 llvm-svn: 308208
2017-07-18 04:05:19 +08:00
tail call win64cc void @win64_callee(i32 %p1)
Don't sibcall between SysV and Win64 convention functions The shadow stack space expectations won't match. Fixes PR22709. llvm-svn: 230667
2015-02-27 03:43:20 +08:00
ret void
}
; CHECK-LABEL: sysv_caller:
; CHECK: subq $40, %rsp
; CHECK: callq win64_callee
; CHECK: addq $40, %rsp
; CHECK: retq
[AArch64] Extend CallingConv::X86_64_Win64 to AArch64 as well Rename the enum value from X86_64_Win64 to plain Win64. The symbol exposed in the textual IR is changed from 'x86_64_win64cc' to 'win64cc', but the numeric value is kept, keeping support for old bitcode. Differential Revision: https://reviews.llvm.org/D34474 llvm-svn: 308208
2017-07-18 04:05:19 +08:00
define win64cc void @win64_caller(i32 %p1) {
Don't sibcall between SysV and Win64 convention functions The shadow stack space expectations won't match. Fixes PR22709. llvm-svn: 230667
2015-02-27 03:43:20 +08:00
entry:
tail call void @sysv_callee(i32 %p1)
ret void
}
; CHECK-LABEL: win64_caller:
; CHECK: callq sysv_callee
; CHECK: retq
define void @sysv_matched(i32 %p1) {
tail call void @sysv_callee(i32 %p1)
ret void
}
; CHECK-LABEL: sysv_matched:
; CHECK: jmp sysv_callee # TAILCALL
[AArch64] Extend CallingConv::X86_64_Win64 to AArch64 as well Rename the enum value from X86_64_Win64 to plain Win64. The symbol exposed in the textual IR is changed from 'x86_64_win64cc' to 'win64cc', but the numeric value is kept, keeping support for old bitcode. Differential Revision: https://reviews.llvm.org/D34474 llvm-svn: 308208
2017-07-18 04:05:19 +08:00
define win64cc void @win64_matched(i32 %p1) {
tail call win64cc void @win64_callee(i32 %p1)
Don't sibcall between SysV and Win64 convention functions The shadow stack space expectations won't match. Fixes PR22709. llvm-svn: 230667
2015-02-27 03:43:20 +08:00
ret void
}
; CHECK-LABEL: win64_matched:
; CHECK: jmp win64_callee # TAILCALL
[Target/X86] Don't use callee-saved registers in a Win64 tail call on non-Windows. Summary: A small bit that I missed when I updated the X86 backend to account for the Win64 calling convention on non-Windows. Now we don't use dead non-volatile registers when emitting a Win64 indirect tail call on non-Windows. Should fix PR23710. Test Plan: Added test for the correct behavior based on the case I posted to PR23710. Reviewers: rnk Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10258 llvm-svn: 239111
2015-06-05 06:50:05 +08:00
[AArch64] Extend CallingConv::X86_64_Win64 to AArch64 as well Rename the enum value from X86_64_Win64 to plain Win64. The symbol exposed in the textual IR is changed from 'x86_64_win64cc' to 'win64cc', but the numeric value is kept, keeping support for old bitcode. Differential Revision: https://reviews.llvm.org/D34474 llvm-svn: 308208
2017-07-18 04:05:19 +08:00
define win64cc void @win64_indirect_caller(i32 %p1) {
%1 = call win64cc void (i32)* @win64_indirect()
call win64cc void @win64_other(i32 0)
tail call win64cc void %1(i32 %p1)
[Target/X86] Don't use callee-saved registers in a Win64 tail call on non-Windows. Summary: A small bit that I missed when I updated the X86 backend to account for the Win64 calling convention on non-Windows. Now we don't use dead non-volatile registers when emitting a Win64 indirect tail call on non-Windows. Should fix PR23710. Test Plan: Added test for the correct behavior based on the case I posted to PR23710. Reviewers: rnk Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10258 llvm-svn: 239111
2015-06-05 06:50:05 +08:00
ret void
}
; CHECK-LABEL: win64_indirect_caller:
; CHECK: jmpq *%{{rax|rcx|rdx|r8|r9|r11}} # TAILCALL
define void @sysv_indirect_caller(i32 %p1) {
%1 = call void (i32)* @sysv_indirect()
call void @sysv_other(i32 0)
tail call void %1(i32 %p1)
ret void
}
; CHECK-LABEL: sysv_indirect_caller:
; CHECK: jmpq *%{{rax|rcx|rdx|rsi|rdi|r8|r9|r11}} # TAILCALL