mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
2dc50d3067
This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180796 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
1.5 KiB
LLVM
47 lines
1.5 KiB
LLVM
; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -instcombine -S | FileCheck %s
|
|
|
|
target 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-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.9.0"
|
|
|
|
%struct.coordinate = type { i32, i32 }
|
|
|
|
; Make sure that we don't generate a wide load when accessing the struct.
|
|
; struct coordinate {
|
|
; int x;
|
|
; int y;
|
|
; };
|
|
;
|
|
;
|
|
; int foo(struct coordinate *A, int n) {
|
|
;
|
|
; int sum = 0;
|
|
; for (int i = 0; i < n; ++i)
|
|
; sum += A[i].x;
|
|
;
|
|
; return sum;
|
|
; }
|
|
|
|
;CHECK: @foo
|
|
;CHECK-NOT: load <4 x i32>
|
|
;CHECK: ret
|
|
define i32 @foo(%struct.coordinate* nocapture %A, i32 %n) nounwind uwtable readonly ssp {
|
|
entry:
|
|
%cmp4 = icmp sgt i32 %n, 0
|
|
br i1 %cmp4, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
|
|
%sum.05 = phi i32 [ %add, %for.body ], [ 0, %entry ]
|
|
%x = getelementptr inbounds %struct.coordinate* %A, i64 %indvars.iv, i32 0
|
|
%0 = load i32* %x, align 4
|
|
%add = add nsw i32 %0, %sum.05
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp eq i32 %lftr.wideiv, %n
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body, %entry
|
|
%sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
|
|
ret i32 %sum.0.lcssa
|
|
}
|