2011-07-02 20:42:31 +00:00
|
|
|
; RUN: llc < %s -march=x86 | FileCheck %s
|
2009-04-14 22:45:05 +00:00
|
|
|
|
|
|
|
; Use an h register, but don't omit the explicit shift for
|
|
|
|
; non-address use(s).
|
|
|
|
|
|
|
|
define i32 @foo(i8* %x, i32 %y) nounwind {
|
2011-07-02 20:42:31 +00:00
|
|
|
; CHECK: foo:
|
|
|
|
; CHECK-NOT: ret
|
|
|
|
; CHECK: movzbl %{{[abcd]h}},
|
|
|
|
; CHECK-NOT: ret
|
|
|
|
; CHECK: shll $3,
|
|
|
|
; CHECK: ret
|
|
|
|
|
2009-04-14 22:45:05 +00:00
|
|
|
%t0 = lshr i32 %y, 8 ; <i32> [#uses=1]
|
|
|
|
%t1 = and i32 %t0, 255 ; <i32> [#uses=2]
|
2011-07-02 20:42:31 +00:00
|
|
|
%t2 = shl i32 %t1, 3
|
2009-04-14 22:45:05 +00:00
|
|
|
%t3 = getelementptr i8* %x, i32 %t2 ; <i8*> [#uses=1]
|
|
|
|
store i8 77, i8* %t3, align 4
|
|
|
|
ret i32 %t2
|
|
|
|
}
|