llvm-project/llvm/test/Transforms/InstCombine/2008-03-13-IntToPtr.ll

; RUN: opt < %s -instcombine -S | grep {16} | count 1

define i8* @bork(i8** %qux) {
  %tmp275 = load i8** %qux, align 1
  %tmp275276 = ptrtoint i8* %tmp275 to i32
  %tmp277 = add i32 %tmp275276, 16
  %tmp277278 = inttoptr i32 %tmp277 to i8*
  ret i8* %tmp277278
}
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537 2009-09-12 02:01:28 +08:00			`; RUN: opt < %s -instcombine -S \| grep {16} \| count 1`
The inst combining of inttoptr into GEP with one index was using the bit size of the type instead of the byte size. This was causing troublesome mis-compilations. True to form, this took 2 days to find and is a one-line fix. :-P llvm-svn: 48354 2008-03-14 13:12:19 +08:00
			`define i8* @bork(i8** %qux) {`
			`%tmp275 = load i8** %qux, align 1`
			`%tmp275276 = ptrtoint i8* %tmp275 to i32`
			`%tmp277 = add i32 %tmp275276, 16`
			`%tmp277278 = inttoptr i32 %tmp277 to i8*`
			`ret i8* %tmp277278`
			`}`