mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-23 15:29:51 +00:00
48 lines
1.5 KiB
LLVM
48 lines
1.5 KiB
LLVM
|
; RUN: opt -domtree -instcombine -loops -S < %s | FileCheck %s
|
||
|
|
; Note: The -loops above can be anything that requires the domtree, and is
|
||
|
|
; necessary to work around a pass-manager bug.
|
||
|
|
|
||
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
target triple = "x86_64-unknown-linux-gnu"
|
||
|
|
|
||
|
|
; Function Attrs: nounwind uwtable
|
||
|
|
define void @foo(i32* %a, i32* %b) #0 {
|
||
|
|
entry:
|
||
|
|
%ptrint = ptrtoint i32* %a to i64
|
||
|
|
%maskedptr = and i64 %ptrint, 63
|
||
|
|
%maskcond = icmp eq i64 %maskedptr, 0
|
||
|
|
tail call void @llvm.assume(i1 %maskcond)
|
||
|
|
%ptrint1 = ptrtoint i32* %b to i64
|
||
|
|
%maskedptr2 = and i64 %ptrint1, 63
|
||
|
|
%maskcond3 = icmp eq i64 %maskedptr2, 0
|
||
|
|
tail call void @llvm.assume(i1 %maskcond3)
|
||
|
|
br label %for.body
|
||
|
|
|
||
|
|
; CHECK-LABEL: @foo
|
||
|
|
; CHECK: load i32* {{.*}} align 64
|
||
|
|
; CHECK: store i32 {{.*}} align 64
|
||
|
|
; CHECK: ret
|
||
|
|
|
||
|
|
for.body: ; preds = %entry, %for.body
|
||
|
|
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
|
||
|
|
%arrayidx = getelementptr inbounds i32* %b, i64 %indvars.iv
|
||
|
|
%0 = load i32* %arrayidx, align 4
|
||
|
|
%add = add nsw i32 %0, 1
|
||
|
|
%arrayidx5 = getelementptr inbounds i32* %a, i64 %indvars.iv
|
||
|
|
store i32 %add, i32* %arrayidx5, align 4
|
||
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 16
|
||
|
|
%1 = trunc i64 %indvars.iv.next to i32
|
||
|
|
%cmp = icmp slt i32 %1, 1648
|
||
|
|
br i1 %cmp, label %for.body, label %for.end
|
||
|
|
|
||
|
|
for.end: ; preds = %for.body
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Function Attrs: nounwind
|
||
|
|
declare void @llvm.assume(i1) #1
|
||
|
|
|
||
|
|
attributes #0 = { nounwind uwtable }
|
||
|
|
attributes #1 = { nounwind }
|
||
|
|
|