From 00d18f0879fb02d90aaf27e53a8a6bab2513ab5d Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 1 Mar 2006 06:36:20 +0000 Subject: [PATCH] add a note git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26448 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/README.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt index 9ab35fe4842..050f6142912 100644 --- a/lib/Target/PowerPC/README.txt +++ b/lib/Target/PowerPC/README.txt @@ -434,3 +434,21 @@ int f(signed char *a, _Bool b, _Bool c) { if (c) *a = t; } +===-------------------------------------------------------------------------=== + +This: +int test(unsigned *P) { return *P >> 24; } + +Should compile to: + +_test: + lbz r3,0(r3) + blr + +not: + +_test: + lwz r2, 0(r3) + srwi r3, r2, 24 + blr + -- 2.34.1