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R600: Align functions to 256 bytes

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219002 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-10-03 19:02:02 +00:00
parent 63688e622c
commit 77859c9e9c
3 changed files with 14 additions and 3 deletions
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4
lib/Target/R600/AMDGPUAsmPrinter.cpp
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@ -97,6 +97,10 @@ void AMDGPUAsmPrinter::EmitEndOfAsmFile(Module &M) {
}
bool AMDGPUAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
// The starting address of all shader programs must be 256 bytes aligned.
MF.setAlignment(8);
SetupMachineFunction(MF);
EmitFunctionHeader();

11
lib/Target/R600/MCTargetDesc/AMDGPUAsmBackend.cpp
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@ -57,9 +57,7 @@ public:
assert(!"Not implemented");
}
bool mayNeedRelaxation(const MCInst &Inst) const override { return false; }
bool writeNopData(uint64_t Count, MCObjectWriter *OW) const override {
return true;
}
bool writeNopData(uint64_t Count, MCObjectWriter *OW) const override;
const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override;
};
@ -116,6 +114,13 @@ const MCFixupKindInfo &AMDGPUAsmBackend::getFixupKindInfo(
return Infos[Kind - FirstTargetFixupKind];
}
bool AMDGPUAsmBackend::writeNopData(uint64_t Count, MCObjectWriter *OW) const {
for (unsigned i = 0; i < Count; ++i)
OW->Write8(0);
return true;
}
//===----------------------------------------------------------------------===//
// ELFAMDGPUAsmBackend class
//===----------------------------------------------------------------------===//

2
test/CodeGen/R600/elf.ll
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@ -5,6 +5,8 @@
; ELF-CHECK: Name: .AMDGPU.config
; ELF-CHECK: Type: SHT_PROGBITS
; CONFIG-CHECK: .align 256
; CONFIG-CHECK: test:
; CONFIG-CHECK: .section .AMDGPU.config
; CONFIG-CHECK-NEXT: .long 45096
; CONFIG-CHECK-NEXT: .long 0