mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-30 16:17:05 +00:00
006183a936
The loop vectorizer does not currently understand how to vectorize extractelement instructions. The existing check, which excluded all vector-valued instructions, did not catch extractelement instructions because it checked only the return value. As a result, vectorization would proceed, producing illegal instructions like this: %58 = extractelement <2 x i32> %15, i32 0 %59 = extractelement i32 %58, i32 0 where the second extractelement is illegal because its first operand is not a vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193434 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
1.6 KiB
LLVM
36 lines
1.6 KiB
LLVM
; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -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-macosx10.8.0"
|
|
|
|
; This test checks that we deal with an in-loop extractelement (for now, this
|
|
; means not crashing by not vectorizing).
|
|
; CHECK-LABEL: @_Z4foo1Pii(
|
|
; CHECK-NOT: <4 x i32>
|
|
; CHECK: ret
|
|
define i32 @_Z4foo1Pii(i32* %A, i32 %n, <2 x i32> %q) #0 {
|
|
entry:
|
|
%idx.ext = sext i32 %n to i64
|
|
%add.ptr = getelementptr inbounds i32* %A, i64 %idx.ext
|
|
%cmp3.i = icmp eq i32 %n, 0
|
|
br i1 %cmp3.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i
|
|
|
|
for.body.i: ; preds = %entry, %for.body.i
|
|
%__init.addr.05.i = phi i32 [ %add.i, %for.body.i ], [ 0, %entry ]
|
|
%__first.addr.04.i = phi i32* [ %incdec.ptr.i, %for.body.i ], [ %A, %entry ]
|
|
%0 = load i32* %__first.addr.04.i, align 4
|
|
%q1 = extractelement <2 x i32> %q, i32 %n
|
|
%q2 = add nsw i32 %0, %q1
|
|
%add.i = add nsw i32 %q2, %__init.addr.05.i
|
|
%incdec.ptr.i = getelementptr inbounds i32* %__first.addr.04.i, i64 1
|
|
%cmp.i = icmp eq i32* %incdec.ptr.i, %add.ptr
|
|
br i1 %cmp.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i
|
|
|
|
_ZSt10accumulateIPiiET0_T_S2_S1_.exit: ; preds = %for.body.i, %entry
|
|
%__init.addr.0.lcssa.i = phi i32 [ 0, %entry ], [ %add.i, %for.body.i ]
|
|
ret i32 %__init.addr.0.lcssa.i
|
|
}
|
|
|
|
attributes #0 = { nounwind readonly ssp uwtable }
|
|
|