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[AArch64] Use MCAsmInfoMicrosoft and MCAsmInfoGNUCOFF as base classes

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This matches the structure used on X86 and ARM. This requires
a little bit of duplication of the parts that are equal in both
AArch64 COFF variants though.

Before SVN r335286, these classes didn't add anything that MCAsmInfoCOFF
didn't, but now they do.

This makes AArch64 match X86 in how comdat is used for float constants
for MinGW.

Differential Revision: https://reviews.llvm.org/D49637

llvm-svn: 337755
This commit is contained in:
Martin Storsjo 2018-07-23 22:15:14 +00:00
parent 90dde3eaff
commit 6c4898b15a
3 changed files with 27 additions and 9 deletions
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15
lib/Target/AArch64/MCTargetDesc/AArch64MCAsmInfo.cpp
View File

@ -101,7 +101,7 @@ AArch64MCAsmInfoELF::AArch64MCAsmInfoELF(const Triple &T) {
HasIdentDirective = true;
}
AArch64MCAsmInfoCOFF::AArch64MCAsmInfoCOFF() {
AArch64MCAsmInfoMicrosoftCOFF::AArch64MCAsmInfoMicrosoftCOFF() {
PrivateGlobalPrefix = ".L";
PrivateLabelPrefix = ".L";
@ -112,14 +112,23 @@ AArch64MCAsmInfoCOFF::AArch64MCAsmInfoCOFF() {
AlignmentIsInBytes = false;
SupportsDebugInformation = true;
CodePointerSize = 8;
}
AArch64MCAsmInfoMicrosoftCOFF::AArch64MCAsmInfoMicrosoftCOFF() {
CommentString = ";";
ExceptionsType = ExceptionHandling::WinEH;
}
AArch64MCAsmInfoGNUCOFF::AArch64MCAsmInfoGNUCOFF() {
PrivateGlobalPrefix = ".L";
PrivateLabelPrefix = ".L";
Data16bitsDirective = "\t.hword\t";
Data32bitsDirective = "\t.word\t";
Data64bitsDirective = "\t.xword\t";
AlignmentIsInBytes = false;
SupportsDebugInformation = true;
CodePointerSize = 8;
CommentString = "//";
ExceptionsType = ExceptionHandling::DwarfCFI;
}

8
lib/Target/AArch64/MCTargetDesc/AArch64MCAsmInfo.h
View File

@ -34,15 +34,11 @@ struct AArch64MCAsmInfoELF : public MCAsmInfoELF {
explicit AArch64MCAsmInfoELF(const Triple &T);
};
struct AArch64MCAsmInfoCOFF : public MCAsmInfoCOFF {
explicit AArch64MCAsmInfoCOFF();
};
struct AArch64MCAsmInfoMicrosoftCOFF : public AArch64MCAsmInfoCOFF {
struct AArch64MCAsmInfoMicrosoftCOFF : public MCAsmInfoMicrosoft {
explicit AArch64MCAsmInfoMicrosoftCOFF();
};
struct AArch64MCAsmInfoGNUCOFF : public AArch64MCAsmInfoCOFF {
struct AArch64MCAsmInfoGNUCOFF : public MCAsmInfoGNUCOFF {
explicit AArch64MCAsmInfoGNUCOFF();
};

13
test/CodeGen/AArch64/win_cst_pool.ll Normal file
View File

@ -0,0 +1,13 @@
; RUN: llc < %s -mtriple=aarch64-win32-gnu | FileCheck -check-prefix=MINGW %s
define double @double() {
ret double 0x0000000000800000
}
; MINGW: .section .rdata,"dr"
; MINGW-NEXT: .p2align 3
; MINGW-NEXT: [[LABEL:\.LC.*]]:
; MINGW-NEXT: .xword 8388608
; MINGW: double:
; MINGW: adrp x8, [[LABEL]]
; MINGW-NEXT: ldr d0, [x8, [[LABEL]]]
; MINGW-NEXT: ret