blob: cb638092ea1a3df5699bb2786335cbb5ea8702f8 [file] [log] [blame]
Dan Gohmand7df9e12010-02-12 10:34:29 +00001; RUN: llc %s -o - --x86-asm-syntax=att | grep {cmp. \$10}
Dan Gohman87bc2f12008-06-13 21:43:41 +00002target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
3target triple = "x86_64-apple-darwin9"
4
Dan Gohmand7140f12010-01-21 02:09:26 +00005; The comparison happens after the relevant use, so the stride can easily
6; be changed. The comparison can be done in a narrower mode than the
7; induction variable.
Dan Gohmand7df9e12010-02-12 10:34:29 +00008; TODO: By making the first store post-increment as well, the loop setup
9; could be made simpler.
Dan Gohmancb387ac2008-06-16 22:34:15 +000010
Dan Gohmana9dba962009-04-27 20:16:15 +000011define void @foo() nounwind {
Dan Gohman87bc2f12008-06-13 21:43:41 +000012entry:
13 br label %loop
14
15loop:
16 %indvar = phi i32 [ 0, %entry ], [ %i.2.0.us1534, %loop ] ; <i32> [#uses=1]
17 %i.2.0.us1534 = add i32 %indvar, 1 ; <i32> [#uses=3]
Dan Gohman87bc2f12008-06-13 21:43:41 +000018 %tmp628.us1540 = shl i32 %i.2.0.us1534, 1 ; <i32> [#uses=1]
Dan Gohmana9dba962009-04-27 20:16:15 +000019 %tmp645646647.us1547 = sext i32 %tmp628.us1540 to i64 ; <i64> [#uses=1]
20 store i64 %tmp645646647.us1547, i64* null
Dan Gohmancb387ac2008-06-16 22:34:15 +000021 %tmp611.us1535 = icmp eq i32 %i.2.0.us1534, 4 ; <i1> [#uses=2]
Dan Gohmana9dba962009-04-27 20:16:15 +000022 %tmp623.us1538 = select i1 %tmp611.us1535, i32 6, i32 0 ; <i32> [#uses=1]
23 store i32 %tmp623.us1538, i32* null
Dan Gohman87bc2f12008-06-13 21:43:41 +000024 br i1 %tmp611.us1535, label %exit, label %loop
25
26exit:
27 ret void
28}