mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
5ae21fb23a
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49971 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
752 B
LLVM
23 lines
752 B
LLVM
; LFTR should eliminate the need for the computation of i*i completely. It
|
|
; is only used to compute the exit value.
|
|
; RUN: llvm-as < %s | opt -indvars -dce | llvm-dis | not grep mul
|
|
|
|
@A = external global i32 ; <i32*> [#uses=1]
|
|
|
|
define i32 @quadratic_setlt() {
|
|
entry:
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
%i = phi i32 [ 7, %entry ], [ %i.next, %loop ] ; <i32> [#uses=5]
|
|
%i.next = add i32 %i, 1 ; <i32> [#uses=1]
|
|
store i32 %i, i32* @A
|
|
%i2 = mul i32 %i, %i ; <i32> [#uses=1]
|
|
%c = icmp slt i32 %i2, 1000 ; <i1> [#uses=1]
|
|
br i1 %c, label %loop, label %loopexit
|
|
|
|
loopexit: ; preds = %loop
|
|
ret i32 %i
|
|
}
|
|
|