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Add ABI information to ARM subtarget.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34245 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lauro Ramos Venancio 2007-02-13 19:52:28 +00:00
parent cf8270a994
commit 3630e78db9
4 changed files with 25 additions and 9 deletions
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14
lib/Target/ARM/ARMSubtarget.cpp
View File

@ -26,8 +26,9 @@ ARMSubtarget::ARMSubtarget(const Module &M, const std::string &FS)
, HasVFP2(false)
, UseThumbBacktraces(false)
, IsR9Reserved(false)
, stackAlignment(8)
, TargetType(isELF) { // Default to ELF unless otherwise specified.
, stackAlignment(4)
, TargetType(isELF) // Default to ELF unless otherwise specified.
, TargetABI(ARM_ABI_APCS) {
// Determine default and user specified characteristics
std::string CPU = "generic";
@ -49,9 +50,14 @@ ARMSubtarget::ARMSubtarget(const Module &M, const std::string &FS)
#endif
}
if (TT.find("eabi") != std::string::npos)
TargetABI = ARM_ABI_AAPCS;
if (isAAPCS_ABI())
stackAlignment = 8;
if (isTargetDarwin()) {
UseThumbBacktraces = true;
IsR9Reserved = true;
stackAlignment = 4;
}
}
}

10
lib/Target/ARM/ARMSubtarget.h
View File

@ -42,7 +42,7 @@ protected:
/// IsR9Reserved - True if R9 is a not available as general purpose register.
bool IsR9Reserved;
/// stackAlignment - The minimum alignment known to hold of the stack frame on
/// entry to the function and which must be maintained by every function.
unsigned stackAlignment;
@ -52,6 +52,11 @@ protected:
isELF, isDarwin
} TargetType;
enum {
ARM_ABI_APCS,
ARM_ABI_AAPCS // ARM EABI
} TargetABI;
/// This constructor initializes the data members to match that
/// of the specified module.
///
@ -71,6 +76,9 @@ protected:
bool isTargetDarwin() const { return TargetType == isDarwin; }
bool isTargetELF() const { return TargetType == isELF; }
bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; }
bool isAAPCS_ABI() const { return TargetABI == ARM_ABI_AAPCS; }
bool isThumb() const { return IsThumb; }
bool useThumbBacktraces() const { return UseThumbBacktraces; }

8
lib/Target/ARM/ARMTargetMachine.cpp
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@ -34,13 +34,15 @@ namespace {
///
ARMTargetMachine::ARMTargetMachine(const Module &M, const std::string &FS)
: Subtarget(M, FS),
DataLayout(Subtarget.isTargetDarwin() ?
DataLayout(Subtarget.isAPCS_ABI() ?
//APCS ABI
(Subtarget.isThumb() ?
std::string("e-p:32:32-d:32:32-l:32:32-s:16:32-b:8:32-B:8:32-A:32") :
std::string("e-p:32:32-d:32:32-l:32:32")) :
//AAPCS ABI
(Subtarget.isThumb() ?
std::string("e-p:32:32-d:32:64-l:64:64-s:16:32-b:8:32-B:8:32-A:32") :
std::string("e-p:32:32-d:32:64-l:64:64"))),
std::string("e-p:32:32-d:64:64-l:64:64-s:16:32-b:8:32-B:8:32-A:32") :
std::string("e-p:32:32-d:64:64-l:64:64"))),
InstrInfo(Subtarget),
FrameInfo(Subtarget) {}

2
test/CodeGen/ARM/arguments.ll
View File

@ -1,5 +1,5 @@
; RUN: llvm-as < %s | llc -march=arm &&
; RUN: llvm-as < %s | llc -mtriple=arm-linux | grep "mov r0, r2" | wc -l | grep 1 &&
; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnueabi | grep "mov r0, r2" | wc -l | grep 1 &&
; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin | grep "mov r0, r1" | wc -l | grep 1
define i32 @f(i32 %a, i64 %b) {