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remove bitcast in Str.fromFloat

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This commit is contained in:
Folkert 2021-02-16 00:56:44 +01:00
parent 49ca8f3e86
commit 411a265024
2 changed files with 4 additions and 9 deletions
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8
compiler/builtins/bitcode/src/str.zig
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@ -310,11 +310,9 @@ const c = @cImport({
// Str.fromFloat
// When we actually use this in Roc, libc will be linked so we have access to std.heap.c_allocator
pub fn strFromFloatC(int: i64) callconv(.C) RocStr {
// const foobar = @bitCast(f32, @intCast(i32, float));
// const result = std.fmt.allocPrint(std.heap.c_allocator, "{}", .{@as(f32, foobar)}) catch unreachable;
const float = @bitCast(f64, int);
pub fn strFromFloatC(float: f64) callconv(.C) RocStr {
// NOTE the compiled zig for float formatting seems to use LLVM11-specific features
// hopefully we can use zig instead of snprintf in the future when we upgrade
var buf: [100]u8 = undefined;
const result = c.snprintf(&buf, 100, "%f", float);

5
compiler/gen/src/llvm/build_str.rs
View file

@ -281,11 +281,8 @@ pub fn str_from_float<'a, 'ctx, 'env>(
int_symbol: Symbol,
) -> BasicValueEnum<'ctx> {
let float = load_symbol(scope, &int_symbol);
let int = env
.builder
.build_bitcast(float, env.context.i64_type(), "to_bits");
let zig_result = call_bitcode_fn(env, &[int], &bitcode::STR_FROM_FLOAT).into_struct_value();
let zig_result = call_bitcode_fn(env, &[float], &bitcode::STR_FROM_FLOAT).into_struct_value();
zig_str_to_struct(env, zig_result).into()
}