WinCOFF cannot form PC relative relocations to support absolute
MCValues. We should reenable this once WinCOFF supports emission of
IMAGE_REL_I386_REL32 relocations.
This fixes PR19272.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205058
91177308-0d34-0410-b5e6-
96231b3b80d8
/// IsLegalToCallImmediateAddr - Return true if the subtarget allows calls
/// to immediate address.
bool X86Subtarget::IsLegalToCallImmediateAddr(const TargetMachine &TM) const {
- if (In64BitMode)
+ // FIXME: I386 PE/COFF supports PC relative calls using IMAGE_REL_I386_REL32
+ // but WinCOFFObjectWriter::RecordRelocation cannot emit them. Once it does,
+ // the following check for Win32 should be removed.
+ if (In64BitMode || isTargetWin32())
return false;
return isTargetELF() || TM.getRelocationModel() == Reloc::Static;
}
; RUN: llc < %s -mtriple=i386-apple-darwin -relocation-model=static | FileCheck -check-prefix X86STA %s
; RUN: llc < %s -mtriple=i386-apple-darwin -relocation-model=pic | FileCheck -check-prefix X86PIC %s
; RUN: llc < %s -mtriple=i386-pc-linux -relocation-model=dynamic-no-pic | FileCheck -check-prefix X86DYN %s
+; RUN: llc < %s -mtriple=i386-pc-win32 -relocation-model=static | FileCheck -check-prefix X86WINSTA %s
; Call to immediate is not safe on x86-64 unless we *know* that the
; call will be within 32-bits pcrel from the dest immediate.
; X86STA: {{call.*12345678}}
; X86PIC-NOT: {{call.*12345678}}
; X86DYN: {{call.*12345678}}
+; X86WINSTA: {{call.*[*]%eax}}
; X64: {{call.*[*]%rax}}