mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 00:12:50 +01:00
32 lines
987 B
LLVM
32 lines
987 B
LLVM
; RUN: llc -march=x86 < %s | FileCheck %s
|
|
|
|
; The comparison happens after the relevant use, so the stride can easily
|
|
; be changed. The comparison can be done in a narrower mode than the
|
|
; induction variable.
|
|
; TODO: By making the first store post-increment as well, the loop setup
|
|
; could be made simpler.
|
|
|
|
define void @foo() nounwind {
|
|
; CHECK: foo:
|
|
; CHECK-NOT: ret
|
|
; CHECK: cmpl $10
|
|
; CHECK: ret
|
|
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%indvar = phi i32 [ 0, %entry ], [ %i.2.0.us1534, %loop ] ; <i32> [#uses=1]
|
|
%i.2.0.us1534 = add i32 %indvar, 1 ; <i32> [#uses=3]
|
|
%tmp628.us1540 = shl i32 %i.2.0.us1534, 1 ; <i32> [#uses=1]
|
|
%tmp645646647.us1547 = sext i32 %tmp628.us1540 to i64 ; <i64> [#uses=1]
|
|
store i64 %tmp645646647.us1547, i64* null
|
|
%tmp611.us1535 = icmp eq i32 %i.2.0.us1534, 4 ; <i1> [#uses=2]
|
|
%tmp623.us1538 = select i1 %tmp611.us1535, i32 6, i32 0 ; <i32> [#uses=1]
|
|
store i32 %tmp623.us1538, i32* null
|
|
br i1 %tmp611.us1535, label %exit, label %loop
|
|
|
|
exit:
|
|
ret void
|
|
}
|