[llvm] r255202 - [WebAssembly] Fix legalization of f32->f64 EXTLOAD.

[Dan Gohman via llvm-commits]

Author: djg
Date: Wed Dec  9 20:07:53 2015
New Revision: 255202

URL: http://llvm.org/viewvc/llvm-project?rev=255202&view=rev
Log:
[WebAssembly] Fix legalization of f32->f64 EXTLOAD.

Modified:
    llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
    llvm/trunk/test/CodeGen/WebAssembly/legalize.ll

Modified: llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp?rev=255202&r1=255201&r2=255202&view=diff
==============================================================================
--- llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp Wed Dec  9 20:07:53 2015
@@ -179,7 +179,7 @@ WebAssemblyTargetLowering::WebAssemblyTa
   //  - Floating-point extending loads.
   //  - Floating-point truncating stores.
   //  - i1 extending loads.
-  setLoadExtAction(ISD::EXTLOAD, MVT::f32, MVT::f64, Expand);
+  setLoadExtAction(ISD::EXTLOAD, MVT::f64, MVT::f32, Expand);
   setTruncStoreAction(MVT::f64, MVT::f32, Expand);
   for (auto T : MVT::integer_valuetypes())
     for (auto Ext : {ISD::EXTLOAD, ISD::ZEXTLOAD, ISD::SEXTLOAD})

Modified: llvm/trunk/test/CodeGen/WebAssembly/legalize.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/WebAssembly/legalize.ll?rev=255202&r1=255201&r2=255202&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/WebAssembly/legalize.ll (original)
+++ llvm/trunk/test/CodeGen/WebAssembly/legalize.ll Wed Dec  9 20:07:53 2015
@@ -31,3 +31,23 @@ define i64 @sext_in_reg_i32_i64(i64 %a)
   %c = ashr i64 %b, 32
   ret i64 %c
 }
+
+; CHECK-LABEL: fpext_f32_f64:
+; CHECK: f32.load $push0=, 0($0){{$}}
+; CHECK: f64.promote/f32 $push1=, $pop0
+; CHECK: return $pop1{{$}}
+define double @fpext_f32_f64(float *%p) {
+  %v = load float, float* %p
+  %e = fpext float %v to double
+  ret double %e
+}
+
+; CHECK-LABEL: fpconv_f64_f32:
+; CHECK: f64.load $push0=, 0($0){{$}}
+; CHECK: f32.demote/f64 $push1=, $pop0
+; CHECK: return $pop1{{$}}
+define float @fpconv_f64_f32(double *%p) {
+  %v = load double, double* %p
+  %e = fptrunc double %v to float
+  ret float %e
+}