diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/PowerPC/README.txt | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/llvm/lib/Target/PowerPC/README.txt b/llvm/lib/Target/PowerPC/README.txt index f705139e680..9565ae131f8 100644 --- a/llvm/lib/Target/PowerPC/README.txt +++ b/llvm/lib/Target/PowerPC/README.txt @@ -255,24 +255,6 @@ int f(signed char *a, _Bool b, _Bool c) { ===-------------------------------------------------------------------------=== -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 - -===-------------------------------------------------------------------------=== - On the G5, logical CR operations are more expensive in their three address form: ops that read/write the same register are half as expensive as those that read from two registers that are different from their destination. |
