[llvm-commits] [commit-after-approval] printf("foo %s baz\n", "bar") -> puts("foo bar baz")

[Mike Stump]

On Aug 3, 2009, at 10:48 AM, Ryan Flynn wrote:
> given a printf() call format containing a single "%s" conversion
> specifier and a constant string parameter, inlines parameter into
> format and lowers printf() to puts().

-fno-builtin needs to avoid having this done in general.  Some  
environments are carefully crafted (-ffreestanding -mkernel) and the  
transform can break them.