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Properly print 'P' modifier on inline asm memory operands.

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This should fix PR3379 and PR4064.
Patch inspired by Edwin Török!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70328 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-04-28 21:49:33 +00:00
parent 32558650ae
commit 573c92d8ba
3 changed files with 21 additions and 8 deletions
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13
lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
View File

@ -570,12 +570,13 @@ void X86ATTAsmPrinter::printSSECC(const MachineInstr *MI, unsigned Op) {
}
void X86ATTAsmPrinter::printLeaMemReference(const MachineInstr *MI, unsigned Op,
const char *Modifier){
const char *Modifier,
bool NotRIPRel) {
MachineOperand BaseReg = MI->getOperand(Op);
MachineOperand IndexReg = MI->getOperand(Op+2);
const MachineOperand &DispSpec = MI->getOperand(Op+3);
bool NotRIPRel = IndexReg.getReg() || BaseReg.getReg();
NotRIPRel |= IndexReg.getReg() || BaseReg.getReg();
if (DispSpec.isGlobal() ||
DispSpec.isCPI() ||
DispSpec.isJTI() ||
@ -615,14 +616,14 @@ void X86ATTAsmPrinter::printLeaMemReference(const MachineInstr *MI, unsigned Op,
}
void X86ATTAsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op,
const char *Modifier){
const char *Modifier, bool NotRIPRel){
assert(isMem(MI, Op) && "Invalid memory reference!");
MachineOperand Segment = MI->getOperand(Op+4);
if (Segment.getReg()) {
printOperand(MI, Op+4, Modifier);
O << ':';
}
printLeaMemReference(MI, Op, Modifier);
printLeaMemReference(MI, Op, Modifier, NotRIPRel);
}
void X86ATTAsmPrinter::printPICJumpTableSetLabel(unsigned uid,
@ -723,7 +724,7 @@ bool X86ATTAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
return false;
case 'P': // Don't print @PLT, but do print as memory.
printOperand(MI, OpNo, "mem");
printOperand(MI, OpNo, "mem", /*NotRIPRel=*/true);
return false;
}
}
@ -749,7 +750,7 @@ bool X86ATTAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
// These only apply to registers, ignore on mem.
break;
case 'P': // Don't print @PLT, but do print as memory.
printOperand(MI, OpNo, "mem");
printMemReference(MI, OpNo, "mem", /*NotRIPRel=*/true);
return false;
}
}

4
lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.h
View File

@ -112,9 +112,9 @@ class VISIBILITY_HIDDEN X86ATTAsmPrinter : public AsmPrinter {
void printMachineInstruction(const MachineInstr *MI);
void printSSECC(const MachineInstr *MI, unsigned Op);
void printMemReference(const MachineInstr *MI, unsigned Op,
const char *Modifier=NULL);
const char *Modifier=NULL, bool NotRIPRel = false);
void printLeaMemReference(const MachineInstr *MI, unsigned Op,
const char *Modifier=NULL);
const char *Modifier=NULL, bool NotRIPRel = false);
void printPICJumpTableSetLabel(unsigned uid,
const MachineBasicBlock *MBB) const;
void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,

12
test/CodeGen/X86/2009-04-29-InlineAsmPMemoryModifier.ll Normal file
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@ -0,0 +1,12 @@
; RUN: llvm-as < %s | llc -march=x86-64 | grep gs: | not grep rip
; PR3379
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "x86_64-unknown-linux-gnu"
@per_cpu__cpu_number = external global i32 ; <i32*> [#uses=1]
define void @pat_init() nounwind {
entry:
%0 = call i32 asm "movl %gs:${1:P},$0", "=r,*m,~{dirflag},~{fpsr},~{flags}"(i32* @per_cpu__cpu_number) nounwind ; <i32> [#uses=0]
unreachable
}