Compiler Crash (unable to legalize)

[mateoconlechuga]

Compiler crashes when any of O1,O2,O3,Os,Ofast is used.

main.c

extern void a(int k);
void m(void)
{
    for (int k = 0;;)
    {
        a(k++ / 3);
    }
}

error:

fatal error: error in backend: unable to legalize instruction: %26:_(s48) = G_LSHR %24:_, %27:_(s8) (in function: m)

[adriweb]

The nightly toolchain just wasn't pulling the "correct" compiler build (due to one of the CI thing failing (the old mac build can be fixed or removed @jacobly0 :P)
I can confirm the latest compiler works fine:

	section	.text,"ax",@progbits
	assume	adl = 1
	section	.text,"ax",@progbits
	public	_m
_m:
	ld	hl, -3
	call	__frameset
	or	a, a
	sbc	hl, hl
	push	hl
	pop	de
BB0_1:
	inc	de
	ld	(ix - 3), de
	ld	bc, 3
	call	__idivu
	push	hl
	call	_a
	ld	de, (ix - 3)
	pop	hl
	push	de
	pop	hl
	jr	BB0_1
	section	.text,"ax",@progbits

	ident	"clang version 15.0.0 (https://github.com/jacobly0/llvm-project.git 87dbcb9ad4aac66fa28b578e02021919589d3e82)"
	extern	__idivu
	extern	__Unwind_SjLj_Register
	extern	__Unwind_SjLj_Unregister
	extern	__frameset
	extern	_a

[mateoconlechuga]

This is because the actions are broken so I was testing the wrong compiler version