463858e6ff
Introduce pseudo-ops PanicMem and LoweredPanicMem. PanicMem could be rewritten directly into MOVL during lowering, but then we couldn't log nil checks. With this change, runnable nil check tests pass: GOSSAPKG=main go run run.go -- nil*.go Compiler output nil check tests fail: GOSSAPKG=p go run run.go -- nil*.go This is due to several factors: * SSA has improved elimination of unnecessary nil checks. * SSA is missing elimination of implicit nil checks. * SSA is missing extra logging about why nil checks were removed. I'm not sure how best to resolve these failures, particularly in a world in which the two backends will live side by side for some time. For now, punt on the problem. Change-Id: Ib2ca6824551671f92e0e1800b036f5ca0905e2a3 Reviewed-on: https://go-review.googlesource.com/13474 Reviewed-by: Keith Randall <khr@golang.org> |
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