test_sse1 does not validate as asm.js.

[juj]

Build the newly merged SSE1 completeness test with

emcc tests/test_sse1.cpp -o a.html -O2 -s PRECISE_F32=1

and run in current Nightly. It will produce a validation error

TypeError: asm.js type error: then/else branches of conditional must both produce int or double, current types are float32x4 and float32x4

If one builds with -g2 flag in addition to above, the error changes to the following:

TypeError: asm.js type error: dot access field must be a lane name (x, y, z, w) or signMask

where the offending line reads

if ((SIMD_float32x4(Math_fround(nan), Math_fround(1.0), Math_fround(0.0), Math_fround(-1.0)).signMaskPolyfill | 0) != 8) {
  _fwrite(2568, 74, 1, HEAP32[_stderr >> 2] | 0) | 0;
  HEAP32[2] = (HEAP32[2] | 0) + 1;
}

[sunfishcode]

I filed https://bugzilla.mozilla.org/show_bug.cgi?id=1108870 about the first validation error.

[sunfishcode]

I filed https://bugzilla.mozilla.org/show_bug.cgi?id=1108877 about a bug which is blocking the proper fix for the second validation error.

[bnjbvr]

Fwiw, bug 1108870 has been fixed, patch in bug 1108877 is r+'d and waits for @sunfishcode landing it.

[sunfishcode]

Bugs 1108870 and 1108877 have both landed.

[juj]

Validates correctly in current incoming.