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Use a different encoding for debugtrap on PS4. 

llvm-svn: 227116
This commit is contained in:
Alex Rosenberg 2015-01-26 19:09:27 +00:00
parent 577b39349e
commit b9fefdd215
4 changed files with 22 additions and 8 deletions
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2
llvm/lib/Target/X86/X86InstrInfo.td
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@ -790,6 +790,8 @@ def Not16BitMode : Predicate<"!Subtarget->is16Bit()">,
def In32BitMode : Predicate<"Subtarget->is32Bit()">,
AssemblerPredicate<"Mode32Bit", "32-bit mode">;
def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
def IsPS4 : Predicate<"Subtarget->isTargetPS4()">;
def NotPS4 : Predicate<"!Subtarget->isTargetPS4()">;
def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;

7
llvm/lib/Target/X86/X86InstrSystem.td
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@ -38,9 +38,6 @@ def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3",
[(int_x86_int (i8 3))], IIC_INT3>;
} // SchedRW
def : Pat<(debugtrap),
(INT3)>;
// The long form of "int $3" turns into int3 as a size optimization.
// FIXME: This doesn't work because InstAlias can't match immediate constants.
//def : InstAlias<"int\t$3", (INT3)>;
@ -71,6 +68,10 @@ def IRET64 : RI<0xcf, RawFrm, (outs), (ins), "iretq", [], IIC_IRET>,
Requires<[In64BitMode]>;
} // SchedRW
def : Pat<(debugtrap),
(INT3)>, Requires<[NotPS4]>;
def : Pat<(debugtrap),
(INT (i8 0x41))>, Requires<[IsPS4]>;
//===----------------------------------------------------------------------===//
// Input/Output Instructions.

1
llvm/lib/Target/X86/X86Subtarget.h
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@ -403,6 +403,7 @@ public:
bool isTargetFreeBSD() const { return TargetTriple.isOSFreeBSD(); }
bool isTargetDragonFly() const { return TargetTriple.isOSDragonFly(); }
bool isTargetSolaris() const { return TargetTriple.isOSSolaris(); }
bool isTargetPS4() const { return TargetTriple.isPS4(); }
bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
bool isTargetCOFF() const { return TargetTriple.isOSBinFormatCOFF(); }

20
llvm/test/CodeGen/X86/trap.ll
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@ -1,15 +1,25 @@
; RUN: llc < %s -march=x86 -mcpu=yonah | FileCheck %s
; RUN: llc < %s -mtriple=i686-apple-darwin8 -mcpu=yonah | FileCheck %s -check-prefix=DARWIN
; RUN: llc < %s -mtriple=i686-unknown-linux -mcpu=yonah | FileCheck %s -check-prefix=LINUX
; RUN: llc < %s -mtriple=x86_64-scei-ps4 | FileCheck %s -check-prefix=PS4
; CHECK-LABEL: test0:
; CHECK: ud2
; DARWIN-LABEL: test0:
; DARWIN: ud2
; LINUX-LABEL: test0:
; LINUX: ud2
; PS4-LABEL: test0:
; PS4: ud2
define i32 @test0() noreturn nounwind {
entry:
tail call void @llvm.trap( )
unreachable
}
; CHECK-LABEL: test1:
; CHECK: int3
; DARWIN-LABEL: test1:
; DARWIN: int3
; LINUX-LABEL: test1:
; LINUX: int3
; PS4-LABEL: test1:
; PS4: int $65
define i32 @test1() noreturn nounwind {
entry:
tail call void @llvm.debugtrap( )