[llvm-commits] [llvm] r142352 - in /llvm/trunk: lib/Target/PTX/PTXInstrInfo.td test/CodeGen/PTX/mad-disabling.ll

Justin Holewinski justin.holewinski at gmail.com
Tue Oct 18 06:39:20 PDT 2011


Author: jholewinski
Date: Tue Oct 18 08:39:20 2011
New Revision: 142352

URL: http://llvm.org/viewvc/llvm-project?rev=142352&view=rev
Log:
PTX: Fix disabling of MAD instruction selection

Modified:
    llvm/trunk/lib/Target/PTX/PTXInstrInfo.td
    llvm/trunk/test/CodeGen/PTX/mad-disabling.ll

Modified: llvm/trunk/lib/Target/PTX/PTXInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PTX/PTXInstrInfo.td?rev=142352&r1=142351&r2=142352&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PTX/PTXInstrInfo.td (original)
+++ llvm/trunk/lib/Target/PTX/PTXInstrInfo.td Tue Oct 18 08:39:20 2011
@@ -885,19 +885,26 @@
 
 // FMUL+FADD
 def : Pat<(f32 (fadd (fmul RegF32:$a, RegF32:$b), RegF32:$c)),
-          (FMADrrr32 RndDefault, RegF32:$a, RegF32:$b, RegF32:$c)>;
+          (FMADrrr32 RndDefault, RegF32:$a, RegF32:$b, RegF32:$c)>,
+          Requires<[SupportsFMA]>;
 def : Pat<(f32 (fadd (fmul RegF32:$a, RegF32:$b), fpimm:$c)),
-          (FMADrri32 RndDefault, RegF32:$a, RegF32:$b, fpimm:$c)>;
+          (FMADrri32 RndDefault, RegF32:$a, RegF32:$b, fpimm:$c)>,
+          Requires<[SupportsFMA]>;
 def : Pat<(f32 (fadd (fmul RegF32:$a, fpimm:$b), fpimm:$c)),
-          (FMADrrr32 RndDefault, RegF32:$a, fpimm:$b, fpimm:$c)>;
+          (FMADrrr32 RndDefault, RegF32:$a, fpimm:$b, fpimm:$c)>,
+          Requires<[SupportsFMA]>;
 def : Pat<(f32 (fadd (fmul RegF32:$a, RegF32:$b), fpimm:$c)),
-          (FMADrri32 RndDefault, RegF32:$a, RegF32:$b, fpimm:$c)>;
+          (FMADrri32 RndDefault, RegF32:$a, RegF32:$b, fpimm:$c)>,
+          Requires<[SupportsFMA]>;
 def : Pat<(f64 (fadd (fmul RegF64:$a, RegF64:$b), RegF64:$c)),
-          (FMADrrr64 RndDefault, RegF64:$a, RegF64:$b, RegF64:$c)>;
+          (FMADrrr64 RndDefault, RegF64:$a, RegF64:$b, RegF64:$c)>,
+          Requires<[SupportsFMA]>;
 def : Pat<(f64 (fadd (fmul RegF64:$a, RegF64:$b), fpimm:$c)),
-          (FMADrri64 RndDefault, RegF64:$a, RegF64:$b, fpimm:$c)>;
+          (FMADrri64 RndDefault, RegF64:$a, RegF64:$b, fpimm:$c)>,
+          Requires<[SupportsFMA]>;
 def : Pat<(f64 (fadd (fmul RegF64:$a, fpimm:$b), fpimm:$c)),
-          (FMADrri64 RndDefault, RegF64:$a, fpimm:$b, fpimm:$c)>;
+          (FMADrri64 RndDefault, RegF64:$a, fpimm:$b, fpimm:$c)>,
+          Requires<[SupportsFMA]>;
 
 // FNEG
 def : Pat<(f32 (fneg RegF32:$a)), (FNEGrr32 RndDefault, RegF32:$a)>;

Modified: llvm/trunk/test/CodeGen/PTX/mad-disabling.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/PTX/mad-disabling.ll?rev=142352&r1=142351&r2=142352&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/PTX/mad-disabling.ll (original)
+++ llvm/trunk/test/CodeGen/PTX/mad-disabling.ll Tue Oct 18 08:39:20 2011
@@ -1,8 +1,13 @@
-; RUN: llc < %s -march=ptx32 -mattr=+ptx20,+sm20 | grep "mad"
-; RUN: llc < %s -march=ptx32 -mattr=+ptx20,+sm20,+no-fma | grep -v "mad"
+; RUN: llc < %s -march=ptx32 -mattr=+ptx20,+sm20 | FileCheck %s -check-prefix=FMA
+; RUN: llc < %s -march=ptx32 -mattr=+ptx20,+sm20,+no-fma | FileCheck %s -check-prefix=MUL
+; RUN: llc < %s -march=ptx64 -mattr=+ptx20,+sm20 | FileCheck %s -check-prefix=FMA
+; RUN: llc < %s -march=ptx64 -mattr=+ptx20,+sm20,+no-fma | FileCheck %s -check-prefix=MUL
 
 define ptx_device float @test_mul_add_f(float %x, float %y, float %z) {
 entry:
+; FMA: mad.rn.f32
+; MUL: mul.rn.f32
+; MUL: add.rn.f32
   %a = fmul float %x, %y
   %b = fadd float %a, %z
   ret float %b
@@ -10,6 +15,9 @@
 
 define ptx_device double @test_mul_add_d(double %x, double %y, double %z) {
 entry:
+; FMA: mad.rn.f64
+; MUL: mul.rn.f64
+; MUL: add.rn.f64
   %a = fmul double %x, %y
   %b = fadd double %a, %z
   ret double %b





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