odin-lang/Odin Issue #4387: Panic: un-gep-able type #simd[4]f32

2024-10-17 12:07:36 DragosPopse

// odin build .
package main
main :: proc() {
	b: #simd[4]f32
	b.x = 10
}

produces `Odin\src\llvm_backend_utility.cpp(1438): Panic: un-gep-able type #simd[4]f32`

The code i originally encounterd this in:

package main
import "core:fmt"
main :: proc() {
	a: [4]f32
	b: #simd[4]f32
	b.x = 10
	fmt.printf("%v %v\n", align_of(a), align_of(b))
	a += 10
	b += b
	fmt.printf("%v %v\n", a, b)
}

`odin report`:

Odin:    dev-2024-09:8371ef668
        OS:      Windows 11 Professional (version: 23H2), build 22631.4317
        CPU:     AMD Ryzen 9 7900X 12-Core Processor
        RAM:     64661 MiB
        Backend: LLVM 18.1.8

Comments (1)

2025-06-02 12:40:48 Feoramund

This no longer crashes. Instead, it gives me this error:

4387/main.odin(6:2) Error: Extracting an element from a #simd array using .x syntax is disallowed, prefer `simd.extract`
	b.x = 10