Changes in directory llvm/lib/Target/PowerPC:
PPCISelLowering.cpp updated: 1.37 -> 1.38
---
Log message:
Correctly Expand or Promote FP_TO_UINT based on the capabilities of the
machine. This allows us to generate great code for i32 FP_TO_UINT now on
targets with 64 bit extensions.
---
Diffs of the changes: (+5 -3)
PPCISelLowering.cpp | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
Index: llvm/lib/Target/PowerPC/PPCISelLowering.cpp
diff -u llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.37
llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.38
--- llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.37 Tue Oct 25 15:54:57 2005
+++ llvm/lib/Target/PowerPC/PPCISelLowering.cpp Tue Oct 25 18:48:36 2005
@@ -81,9 +81,6 @@
setOperationAction(ISD::BRCOND, MVT::Other, Expand);
setOperationAction(ISD::BRCONDTWOWAY, MVT::Other, Expand);
- // PowerPC does not have FP_TO_UINT
- setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand);
-
// PowerPC turns FP_TO_SINT into FCTIWZ and some load/stores.
setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom);
@@ -98,6 +95,11 @@
// They also have instructions for converting between i64 and fp.
setOperationAction(ISD::FP_TO_SINT, MVT::i64, Custom);
setOperationAction(ISD::SINT_TO_FP, MVT::i64, Custom);
+ // To take advantage of the above i64 FP_TO_SINT, promote i32 FP_TO_UINT
+ setOperationAction(ISD::FP_TO_UINT, MVT::i32, Promote);
+ } else {
+ // PowerPC does not have FP_TO_UINT on 32 bit implementations.
+ setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand);
}
if (TM.getSubtarget<PPCSubtarget>().has64BitRegs()) {
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