In WebAssembly on x86 (32-bit), when we call a function that returns a float or a double, we use the FSTP instruction to read the return value from the FPU register stack. The FSTP instruction converts the value to single-precision or double-precision floating-point format, depending on the destination operand. Currently, we always use double as the destination. This is wrong. We should use the correct type.
Created attachment 261380 [details] Patch
Comment on attachment 261380 [details] Patch r=me
Comment on attachment 261380 [details] Patch Clearing flags on attachment: 261380 Committed r189918: <http://trac.webkit.org/changeset/189918>
All reviewed patches have been landed. Closing bug.