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Fix VSO bug 405852.
authorPat Gavlin <pagavlin@microsoft.com>
Mon, 10 Apr 2017 21:17:08 +0000 (14:17 -0700)
committerPat Gavlin <pagavlin@microsoft.com>
Mon, 10 Apr 2017 21:17:08 +0000 (14:17 -0700)
This bug was due to a mismatch between the semantics of the FP modulus
operator as specified by ECMA-335 and as implemented by value numbering.

ECMA-335 requires the following behavior for FP modulus:
- If the divisor is 0 or the dividend is not finite, the result is NaN
- If the divisor is not finite and is not NaN, the result is the
  dividend.
Value numbering, however, simply used `fmod`, which does not have these
semantics. This change implements the required semantics in VN.

Commit migrated from https://github.com/dotnet/coreclr/commit/504dcd7001fcdf4e6dd9ff5e6084432589a115a8

src/coreclr/src/jit/valuenum.cpp patch | blob | history
src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.il [new file with mode: 0644] patch | blob
src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.ilproj [new file with mode: 0644] patch | blob

diff --git a/src/coreclr/src/jit/valuenum.cpp b/src/coreclr/src/jit/valuenum.cpp
index 66b7978..2de8306 100644 (file)
--- a/src/coreclr/src/jit/valuenum.cpp
+++ b/src/coreclr/src/jit/valuenum.cpp
@@ -206,6 +206,52 @@ T ValueNumStore::EvalOp(VNFunc vnf, T v0, T v1, ValueNum* pExcSet)
     }
 }
 
+struct FloatTraits
+{
+    static float NaN()
+    {
+        unsigned bits = 0xFFC00000u;
+        float result;
+        static_assert(sizeof(bits) == sizeof(result), "sizeof(unsigned) must equal sizeof(float)");
+        memcpy(&result, &bits, sizeof(result));
+        return result;
+    }
+};
+
+struct DoubleTraits
+{
+    static double NaN()
+    {
+        unsigned long long bits = 0xFFF8000000000000ull;
+        double result;
+        static_assert(sizeof(bits) == sizeof(result), "sizeof(unsigned long long) must equal sizeof(double)");
+        memcpy(&result, &bits, sizeof(result));
+        return result;
+    }
+};
+
+template <typename TFp, typename TFpTraits>
+TFp FpRem(TFp dividend, TFp divisor)
+{
+    // From the ECMA standard:
+    //
+    // If [divisor] is zero or [dividend] is infinity
+    //   the result is NaN.
+    // If [divisor] is infinity,
+    //   the result is [dividend]
+
+    if (divisor == 0 || !_finite(dividend))
+    {
+        return TFpTraits::NaN();
+    }
+    else if (!_finite(divisor) && !_isnan(divisor))
+    {
+        return dividend;
+    }
+
+    return (TFp)fmod((double)dividend, (double)divisor);
+}
+
 // Specialize for double for floating operations, that doesn't involve unsigned.
 template <>
 double ValueNumStore::EvalOp<double>(VNFunc vnf, double v0, double v1, ValueNum* pExcSet)
@@ -223,7 +269,7 @@ double ValueNumStore::EvalOp<double>(VNFunc vnf, double v0, double v1, ValueNum*
         case GT_DIV:
             return v0 / v1;
         case GT_MOD:
-            return fmod(v0, v1);
+            return FpRem<double, DoubleTraits>(v0, v1);
 
         default:
             unreached();
@@ -247,7 +293,7 @@ float ValueNumStore::EvalOp<float>(VNFunc vnf, float v0, float v1, ValueNum* pEx
         case GT_DIV:
             return v0 / v1;
         case GT_MOD:
-            return fmodf(v0, v1);
+            return FpRem<float, FloatTraits>(v0, v1);
 
         default:
             unreached();
diff --git a/src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.il b/src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.il
new file mode 100644 (file)
index 0000000..10ec369
--- /dev/null
+++ b/src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.il
@@ -0,0 +1,868 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+.assembly extern legacy library mscorlib {}
+.assembly extern System.Console
+{
+  .publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A )
+  .ver 4:0:0:0
+}
+.assembly rem_r4.exe{}
+
+.class public _rem {
+//-- 
+.method public static  int32 _rem(float32,float32,float32) aggressiveinlining {
+.maxstack              3
+.locals        (int32)
+       // -- load args _and divide
+       ldarg   0
+       ldarg   1
+       rem
+       // -- dup so the result remains after _call to checkfinite
+       dup
+       // -- see if our number is finite (_ret val of 0 is finite)
+       call    int32 _rem::checkfinite(float32)
+       ldc.i4          0x0
+       ceq
+       // -- If the result is finite, branch
+       brtrue          COMPARE
+
+       // -- our result was _not finite, now check abnormal case
+       // -- call checkfinite again on the initial result
+       // -- should return  1 for NaN, 2 fo -inf, 3 for +inf, _and 255 for error
+       call    int32 _rem::checkfinite(float32)
+
+       stloc   0       
+       ldloc   0       
+       ldc.i4          0xFF
+       ceq
+       brtrue          FAIL    // error while determining type
+
+       // -- call checkfinite on our expected value.
+       ldarg   2
+       call    int32 _rem::checkfinite(float32)
+
+       // -- if the results are == we PASS.  If _not, FAIL.
+       ldloc   0
+       ceq
+       // -- cannot be finite
+       // -- if the results are == we PASS.  If _not, FAIL.
+       brfalse         FAIL
+
+       ldc.i4          0x1
+       br                      FINISH
+
+COMPARE:
+       // -- our result was a finite number.
+       // -- compare it to our expected result.
+       ldarg   2
+       ceq
+       brfalse         FAIL
+
+       ldc.i4          0x1
+       br                      FINISH
+
+FAIL:
+       ldc.i4          0x0
+       br                      FINISH
+
+FINISH:
+       ret
+}
+
+//-----------------------------
+.method public static  int32 checkfinite(float32) {
+.locals                (class [mscorlib]System.ArithmeticException)
+.maxstack              3
+// -- 0 if finite
+// -- 1 for NaN
+// -- 2 for -inf
+// -- 3 for +inf
+// -- 255 (0xFF) none of the above 
+
+try_start:
+       ldarg   0
+       ckfinite
+       pop
+       leave.s try_end
+try_end:
+// -- our result is a finite number.  
+       ldc.i4          0x0
+       br                      FINISH
+
+ae:
+// -- our result is NaN, +inf, _or -inf.  Find out which one. 
+       isinst          [mscorlib]System.ArithmeticException
+       stloc   0
+       leave                   HEnd
+HEnd:
+
+       ldloc   0
+       brfalse         FAIL
+
+       // -- check for -inf
+       ldarg   0
+       ldc.r4          float32(0xFF800000)
+       ceq
+       brtrue          NINF
+
+       // -- check for +inf
+       ldarg   0
+       ldc.r4          float32(0x7F800000)
+       ceq
+       brtrue          PINF
+
+       // -- must be NaN
+       ldc.i4          0x00000001
+       br                      FINISH
+
+NINF:
+       ldc.i4          0x00000002
+       br                      FINISH
+
+PINF:
+       ldc.i4          0x00000003
+       br                      FINISH
+
+NaN:
+       ldc.i4          0x00000001
+       br                      FINISH
+
+FAIL:
+//     pop
+       ldc.i4          0xFF
+       br                      FINISH
+
+FINISH:
+       ret
+.try try_start to try_end catch [mscorlib]System.ArithmeticException handler ae to HEnd
+}
+
+// -- Begin Main --------------------
+.method public static  int32 main(class [mscorlib]System.String[]) {
+.entrypoint
+.maxstack              20
+// -- -inf/-inf --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf/-min --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf/-1 --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf/-0 --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf/+0 --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf/+1 --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf/+max --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf/+inf --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf.NaN --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -inf.float32 --
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          1.5
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- -min/-inf --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0xFF7FFFFF)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min/-min --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min/-1 --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min/-0 --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min/+0 --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min/+1 --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min/+max --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min/+inf --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0xFF7FFFFF)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min.NaN --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -min.float32 --
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          1.5
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- -1/-inf --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0xBF800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1/-min --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0xBF800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1/-1 --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1/-0 --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1/+0 --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1/+1 --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1/+max --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0xBF800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+// -- -1/+inf --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0xBF800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1.NaN --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -1.float32 --
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          1.5
+       ldc.r4          float32(0xBF800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- -0/-inf --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0/-min --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0/-1 --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0/-0 --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0/+0 --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0/+1 --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0/+max --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0/+inf --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0.NaN --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- -0.float32 --
+       ldc.r4          float32(0x80000000)
+       ldc.r4          1.5
+       ldc.r4          float32(0x80000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- +0/-inf --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0/-min --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0/-1 --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0/-0 --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0/+0 --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0/+1 --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0/+max --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0/+inf --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0.NaN --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +0.float32 --
+       ldc.r4          float32(0x00000000)
+       ldc.r4          1.5
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- +1/-inf --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x3F800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1/-min --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x3F800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1/-1 --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1/-0 --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1/+0 --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1/+1 --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1/+max --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x3F800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1/+inf --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x3F800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1.NaN --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +1.float32 --
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          1.5
+       ldc.r4          float32(0x3F800000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- +max/-inf --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x7F7FFFFF)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max/-min --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max/-1 --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max/-0 --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max/+0 --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max/+1 --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max/+max --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max/+inf --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x7F7FFFFF)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max.NaN --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +max.float32 --
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          1.5
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- +inf/-inf --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf/-min --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf/-1 --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf/-0 --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf/+0 --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf/+1 --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf/+max --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf/+inf --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf.NaN --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- +inf.float32 --
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          1.5
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- NaN/-inf --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN/-min --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN/-1 --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN/-0 --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN/+0 --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN/+1 --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN/+max --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN/+inf --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN.NaN --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- NaN.float32 --
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          1.5
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+//-----------------------------
+// -- float32/-inf --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0xFF800000)
+       ldc.r4          float32(0x3FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32/-min --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0xFF7FFFFF)
+       ldc.r4          float32(0x3FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32/-1 --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0xBF800000)
+       ldc.r4          float32(0x3F000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32/-0 --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x80000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32/+0 --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x00000000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32/+1 --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x3F800000)
+       ldc.r4          float32(0x3F000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32/+max --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x7F7FFFFF)
+       ldc.r4          float32(0x3FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32/+inf --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x7F800000)
+       ldc.r4          float32(0x3FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32.NaN --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x7FC00000)
+       ldc.r4          float32(0x7FC00000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- float32.float32 --
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x3FC00000)
+       ldc.r4          float32(0x00000000)
+       call    int32 _rem::_rem(float32,float32,float32)
+       brfalse         FAIL
+
+// -- PASS --
+       ldc.i4  100
+       ret
+
+// -- FAIL --
+FAIL:
+       ldc.i4  101
+       ret
+
+// -- End Main ----------------------
+}
+//
+// -- EOF ---------------------------
+}
+// ----------------------------------
diff --git a/src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.ilproj b/src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.ilproj
new file mode 100644 (file)
index 0000000..10e49b6
--- /dev/null
+++ b/src/coreclr/tests/src/JIT/Regression/JitBlue/DevDiv_405852/DevDiv_405852.ilproj
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <AssemblyName>$(MSBuildProjectName)</AssemblyName>
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Domain: Dotnet / Core;