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-rw-r--r--lib/Target/X86/X86FrameLowering.cpp2
-rw-r--r--lib/Target/X86/X86ISelLowering.cpp2
-rw-r--r--lib/Target/X86/X86Subtarget.h2
3 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp
index adcd4f7ded..cf4e42785b 100644
--- a/lib/Target/X86/X86FrameLowering.cpp
+++ b/lib/Target/X86/X86FrameLowering.cpp
@@ -606,7 +606,7 @@ void X86FrameLowering::emitPrologue(MachineFunction &MF) const {
// responsible for adjusting the stack pointer. Touching the stack at 4K
// increments is necessary to ensure that the guard pages used by the OS
// virtual memory manager are allocated in correct sequence.
- if (NumBytes >= 4096 && STI.isTargetCOFF() && !STI.isTargetEnvMacho()) {
+ if (NumBytes >= 4096 && STI.isOSWindows()) {
const char *StackProbeSymbol;
bool isSPUpdateNeeded = false;
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 5f29f4f8ce..d74764714f 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -631,7 +631,7 @@ void X86TargetLowering::resetOperationActions() {
setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
- if (Subtarget->isTargetCOFF() && !Subtarget->isTargetEnvMacho())
+ if (Subtarget->isTargetWindows())
setOperationAction(ISD::DYNAMIC_STACKALLOC, Subtarget->is64Bit() ?
MVT::i64 : MVT::i32, Custom);
else if (TM.Options.EnableSegmentedStacks)
diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index fb357c4675..dd8c0811ce 100644
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -333,6 +333,8 @@ public:
}
bool isTargetEnvMacho() const { return TargetTriple.isEnvironmentMachO(); }
+ bool isOSWindows() const { return TargetTriple.isOSWindows(); }
+
bool isTargetWin64() const {
return In64BitMode && TargetTriple.isOSWindows();
}