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| author | Alex Crichton <alex@alexcrichton.com> | 2018-05-16 18:40:45 -0500 |
|---|---|---|
| committer | Alon Zakai <alonzakai@gmail.com> | 2018-05-16 16:40:45 -0700 |
| commit | 3c5a2de669542caebd7ef001db6678b70375f0b5 (patch) | |
| tree | bbe25d21142627cc04041d7ecbea9d4d15f3a680 /src/asmjs | |
| parent | d4aa0d30234ac9e553d743bd881a767d96554a4a (diff) | |
| download | binaryen-3c5a2de669542caebd7ef001db6678b70375f0b5.tar.gz binaryen-3c5a2de669542caebd7ef001db6678b70375f0b5.tar.bz2 binaryen-3c5a2de669542caebd7ef001db6678b70375f0b5.zip | |
wasm2asm: Implement float<->int conversions (#1550)
This commit lifts the same conversion strategy that `emcc` takes to convert
between floats point numbers and integers, and it should implement all the
various matrices of i32/u32/i64/u64 to f32/f64
Some refactoring was performed in the i64->i32 pass to allow for temporary
variables to get allocated which have types other than i32, but otherwise this
contains a pretty direct translation of `emcc`'s operations to `wasm2asm`.
Diffstat (limited to 'src/asmjs')
| -rw-r--r-- | src/asmjs/shared-constants.cpp | 4 | ||||
| -rw-r--r-- | src/asmjs/shared-constants.h | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/src/asmjs/shared-constants.cpp b/src/asmjs/shared-constants.cpp index c6efe64f9..bf956f173 100644 --- a/src/asmjs/shared-constants.cpp +++ b/src/asmjs/shared-constants.cpp @@ -89,5 +89,7 @@ cashew::IString GLOBAL("global"), WASM_ROTR32("__wasm_rotr_i32"), WASM_ROTR64("__wasm_rotr_i64"), WASM_GROW_MEMORY("__wasm_grow_memory"), - WASM_CURRENT_MEMORY("__wasm_current_memory"); + WASM_CURRENT_MEMORY("__wasm_current_memory"), + WASM_FETCH_HIGH_BITS("__wasm_fetch_high_bits"), + INT64_TO_32_HIGH_BITS("i64toi32_i32$HIGH_BITS"); } diff --git a/src/asmjs/shared-constants.h b/src/asmjs/shared-constants.h index 28142fecc..973b5eb49 100644 --- a/src/asmjs/shared-constants.h +++ b/src/asmjs/shared-constants.h @@ -92,7 +92,9 @@ extern cashew::IString GLOBAL, WASM_ROTR32, WASM_ROTR64, WASM_GROW_MEMORY, - WASM_CURRENT_MEMORY; + WASM_CURRENT_MEMORY, + WASM_FETCH_HIGH_BITS, + INT64_TO_32_HIGH_BITS; } #endif // wasm_asmjs_shared_constants_h |