[llvm-commits] CVS: llvm/lib/Target/PowerPC/PowerPCInstrInfo.td

[Chris Lattner]

Changes in directory llvm/lib/Target/PowerPC:

PowerPCInstrInfo.td updated: 1.80 -> 1.81
---
Log message:

LFS/STFS load and store FP values, not integer ones.  This change allows us
to codegen this: float foo() { return 1.245; }

into this:

_foo:
        lis r2, ha16(.CPI_foo_0)
        lfs f1, lo16(.CPI_foo_0)(r2)
        blr

instead of this:

_foo:
        lis r2, ha16(.CPI_foo_0)
        lfs r2, lo16(.CPI_foo_0)(r2)   <-- ouch
        or f1, r2, r2                  <-- ouch
        blr

with the dag isel.



---
Diffs of the changes:  (+4 -4)

 PowerPCInstrInfo.td |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)


Index: llvm/lib/Target/PowerPC/PowerPCInstrInfo.td
diff -u llvm/lib/Target/PowerPC/PowerPCInstrInfo.td:1.80 llvm/lib/Target/PowerPC/PowerPCInstrInfo.td:1.81
--- llvm/lib/Target/PowerPC/PowerPCInstrInfo.td:1.80	Wed Aug 24 18:08:16 2005
+++ llvm/lib/Target/PowerPC/PowerPCInstrInfo.td	Wed Aug 24 19:26:22 2005
@@ -179,15 +179,15 @@
 def CMPLDI : DForm_6_ext<10, (ops CRRC:$dst, GPRC:$src1, u16imm:$src2),
                          "cmpldi $dst, $src1, $src2">, isPPC64;
 let isLoad = 1 in {
-def LFS : DForm_8<48, (ops GPRC:$rD, symbolLo:$disp, GPRC:$rA),
+def LFS : DForm_8<48, (ops FPRC:$rD, symbolLo:$disp, GPRC:$rA),
                   "lfs $rD, $disp($rA)">;
-def LFD : DForm_8<50, (ops GPRC:$rD, symbolLo:$disp, GPRC:$rA),
+def LFD : DForm_8<50, (ops FPRC:$rD, symbolLo:$disp, GPRC:$rA),
                   "lfd $rD, $disp($rA)">;
 }
 let isStore = 1 in {
-def STFS : DForm_9<52, (ops GPRC:$rS, symbolLo:$disp, GPRC:$rA),
+def STFS : DForm_9<52, (ops FPRC:$rS, symbolLo:$disp, GPRC:$rA),
                    "stfs $rS, $disp($rA)">;
-def STFD : DForm_9<54, (ops GPRC:$rS, symbolLo:$disp, GPRC:$rA),
+def STFD : DForm_9<54, (ops FPRC:$rS, symbolLo:$disp, GPRC:$rA),
                    "stfd $rS, $disp($rA)">;
 }