1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
; RUN: llvm-as < %s | llc -march=x86 | grep {leal}
; XFAIL: *
; This test is XFAIL'd because strength-reduction was improved to
; avoid emitting the lea, so it longer tests whether the 16-bit
; lea is avoided.
@X = global i16 0 ; <i16*> [#uses=1]
@Y = global i16 0 ; <i16*> [#uses=1]
define void @_Z3fooi(i32 %N) {
entry:
%tmp1019 = icmp sgt i32 %N, 0 ; <i1> [#uses=1]
br i1 %tmp1019, label %bb, label %return
bb: ; preds = %bb, %entry
%i.014.0 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2]
%tmp1 = trunc i32 %i.014.0 to i16 ; <i16> [#uses=2]
volatile store i16 %tmp1, i16* @X, align 2
%tmp34 = shl i16 %tmp1, 2 ; <i16> [#uses=1]
volatile store i16 %tmp34, i16* @Y, align 2
%indvar.next = add i32 %i.014.0, 1 ; <i32> [#uses=2]
%exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1]
br i1 %exitcond, label %return, label %bb
return: ; preds = %bb, %entry
ret void
}
|
