cmd/compile: ICE when compiling simple loop

[randall77]

package main

var x [3][3]int

func main() {
	for i := range 3 {
		x[i][i] = 0
	}
}

Crashes the compiler with:

tmp2.go:5:6: internal compiler error: 'main': value i (nil) incorrectly live at entry

Probably related to rewriting loops to clear builtin calls.

Found while trying more cases that might happen in #80519

[randall77]

(This will probably automatically get fixed by any fix for #80519.)

[gabyhelp]

Related Issues

• cmd/compile: internal compiler error: 'F-range1': panic during short circuit while compiling F-range1 #78408 (closed)
• cmd/compile: panic: runtime error: index out of range in liveness.solve when compiling nested label/goto inside range over nil func literal #79538 (closed)
• cmd/compile: internal compiler error on range over negative integer #63378 (closed)
• cmd/compile: internal compiler error: expected branch at write barrier block #25516 (closed)
• cmd/compile: compiler ICE in 1.26.4 #80303
• cmd/compile: internal compiler error: 'f': value .autotmp_13 (v118) incorrectly live at entry #78410 (closed)
• cmd/compile: range over rune literal causes internal compiler error #64471 (closed)
• cmd/compile: internal compiler error: unexpected type: <nil> (<nil>) in for-range #67027 (closed)
• cmd/compile: internal compiler error: Value live at entry. It shouldn't be. #45706 (closed)
• cmd/compile: internal compiler error: panic during lower in linux/loong64 #53018 (closed)

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[gopherbot]

Change https://go.dev/cl/809660 mentions this issue: cmd/compile: add test for 80534