As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias

(movzx/movsx) because they give more information. Revert that part of the patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2011-04-14 01:46:37 +00:00
parent c6df9883da
commit d336de318e
29 changed files with 112 additions and 121 deletions

View File

@@ -1,10 +1,8 @@
; RUN: llc < %s -march=x86-64 | FileCheck %s
; RUN: llc < %s -march=x86-64 | grep movzbl | count 2
; Use movzbl (aliased as movzx) to avoid partial-register updates.
; Use movzbl to avoid partial-register updates.
define i32 @foo(i32 %p, i8 zeroext %x) nounwind {
; CHECK: movzx %dil, %eax
; CHECK: movzx %al, %eax
%q = trunc i32 %p to i8
%r = udiv i8 %q, %x
%s = zext i8 %r to i32