mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
cf985a9545
variable increment / decrement slighter high priority. This has major impact on some micro-benchmarks. On MultiSource/Applications and spec tests, it's a minor win. It also reduce 256.bzip instruction count by 8%, 55 on 164.gzip on i386 / Darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82485 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; RUN: llc < %s -mtriple=i386-apple-darwin10.0 -relocation-model=pic | FileCheck %s
|
|
|
|
define void @dot(i16* nocapture %A, i32 %As, i16* nocapture %B, i32 %Bs, i16* nocapture %C, i32 %N) nounwind ssp {
|
|
; CHECK: dot:
|
|
; CHECK: decl %
|
|
; CHECK-NEXT: jne
|
|
entry:
|
|
%0 = icmp sgt i32 %N, 0 ; <i1> [#uses=1]
|
|
br i1 %0, label %bb, label %bb2
|
|
|
|
bb: ; preds = %bb, %entry
|
|
%i.03 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=3]
|
|
%sum.04 = phi i32 [ 0, %entry ], [ %10, %bb ] ; <i32> [#uses=1]
|
|
%1 = mul i32 %i.03, %As ; <i32> [#uses=1]
|
|
%2 = getelementptr i16* %A, i32 %1 ; <i16*> [#uses=1]
|
|
%3 = load i16* %2, align 2 ; <i16> [#uses=1]
|
|
%4 = sext i16 %3 to i32 ; <i32> [#uses=1]
|
|
%5 = mul i32 %i.03, %Bs ; <i32> [#uses=1]
|
|
%6 = getelementptr i16* %B, i32 %5 ; <i16*> [#uses=1]
|
|
%7 = load i16* %6, align 2 ; <i16> [#uses=1]
|
|
%8 = sext i16 %7 to i32 ; <i32> [#uses=1]
|
|
%9 = mul i32 %8, %4 ; <i32> [#uses=1]
|
|
%10 = add i32 %9, %sum.04 ; <i32> [#uses=2]
|
|
%indvar.next = add i32 %i.03, 1 ; <i32> [#uses=2]
|
|
%exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1]
|
|
br i1 %exitcond, label %bb1.bb2_crit_edge, label %bb
|
|
|
|
bb1.bb2_crit_edge: ; preds = %bb
|
|
%phitmp = trunc i32 %10 to i16 ; <i16> [#uses=1]
|
|
br label %bb2
|
|
|
|
bb2: ; preds = %entry, %bb1.bb2_crit_edge
|
|
%sum.0.lcssa = phi i16 [ %phitmp, %bb1.bb2_crit_edge ], [ 0, %entry ] ; <i16> [#uses=1]
|
|
store i16 %sum.0.lcssa, i16* %C, align 2
|
|
ret void
|
|
}
|