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-rw-r--r--lib/Target/PowerPC/PPCSubtarget.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCSubtarget.cpp b/lib/Target/PowerPC/PPCSubtarget.cpp
index d9b4e30..18e4c07 100644
--- a/lib/Target/PowerPC/PPCSubtarget.cpp
+++ b/lib/Target/PowerPC/PPCSubtarget.cpp
@@ -36,6 +36,7 @@ PPCSubtarget::PPCSubtarget(const std::string &TT, const std::string &CPU,
, Use64BitRegs(false)
, IsPPC64(is64Bit)
, HasAltivec(false)
+ , HasQPX(false)
, HasFSQRT(false)
, HasSTFIWX(false)
, HasISEL(false)
@@ -82,6 +83,12 @@ PPCSubtarget::PPCSubtarget(const std::string &TT, const std::string &CPU,
// Set up darwin-specific properties.
if (isDarwin())
HasLazyResolverStubs = true;
+
+ // QPX requires a 32-byte aligned stack. Note that we need to do this if
+ // we're compiling for a BG/Q system regardless of whether or not QPX
+ // is enabled because external functions will assume this alignment.
+ if (hasQPX() || isBGQ())
+ StackAlignment = 32;
}
/// SetJITMode - This is called to inform the subtarget info that we are