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-rw-r--r--lib/Target/SparcV9/SparcV9RegisterInfo.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Target/SparcV9/SparcV9RegisterInfo.h b/lib/Target/SparcV9/SparcV9RegisterInfo.h
index c29158812f..4b3c831b0c 100644
--- a/lib/Target/SparcV9/SparcV9RegisterInfo.h
+++ b/lib/Target/SparcV9/SparcV9RegisterInfo.h
@@ -69,11 +69,12 @@ namespace llvm {
/* 5 */ o5, o7, l0, l1, l2,
/* 10 */ l3, l4, l5, l6, l7,
/* 15 */ i0, i1, i2, i3, i4,
- /* 20 */ i5, i6, i7, g0, g1,
+ /* 20 */ i5, i6, i7, g0, g1, // i6 is frame ptr, i7 is ret addr, g0 is zero
/* 25 */ g2, g3, g4, g5, g6,
- /* 30 */ g7, o6,
+ /* 30 */ g7, o6, // o6 is stack ptr
// SparcV9FloatRegClass(FloatRegClassID)
+ // - regs 32 .. 63 are FPSingleRegType, 64 .. 95 are FPDoubleRegType
// - unified register numbers 32 ... 95 (64 regs)
/* 32 */ f0, f1, f2,
/* 35 */ f3, f4, f5, f6, f7,