llvm/test/Transforms/LICM/promote-order.ll
Manman Ren 9e81c3bdb2 TBAA: handle scalar TBAA format and struct-path aware TBAA format.
Remove the command line argument "struct-path-tbaa" since we should not depend
on command line argument to decide which format the IR file is using. Instead,
we check the first operand of the tbaa tag node, if it is a MDNode, we treat
it as struct-path aware TBAA format, otherwise, we treat it as scalar TBAA
format.

When clang starts to use struct-path aware TBAA format no matter whether
struct-path-tbaa is no, and we can auto-upgrade existing bc files, the support
for scalar TBAA format can be dropped.

Existing testing cases are updated to use the struct-path aware TBAA format.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191538 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-27 18:34:27 +00:00

44 lines
1.7 KiB
LLVM

; RUN: opt -tbaa -basicaa -licm -S < %s | FileCheck %s
; LICM should keep the stores in their original order when it sinks/promotes them.
; rdar://12045203
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"
@p = external global i8*
define i32* @_Z4doiti(i32 %n, float* %tmp1, i32* %tmp3) nounwind {
entry:
%cmp1 = icmp slt i32 0, %n
br i1 %cmp1, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body, %for.body.lr.ph
%i.02 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
store float 1.000000e+00, float* %tmp1, align 4, !tbaa !1
store i32 1, i32* %tmp3, align 4, !tbaa !2
%inc = add nsw i32 %i.02, 1
%cmp = icmp slt i32 %inc, %n
br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
; CHECK: for.cond.for.end_crit_edge:
; CHECK: store float 1.000000e+00, float* %tmp1
; CHECK: store i32 1, i32* %tmp3
for.cond.for.end_crit_edge: ; preds = %for.body
%split = phi i32* [ %tmp3, %for.body ]
br label %for.end
for.end: ; preds = %for.cond.for.end_crit_edge, %entry
%r.0.lcssa = phi i32* [ %split, %for.cond.for.end_crit_edge ], [ undef, %entry ]
ret i32* %r.0.lcssa
}
!0 = metadata !{metadata !"minimal TBAA"}
!1 = metadata !{metadata !3, metadata !3, i64 0}
!2 = metadata !{metadata !4, metadata !4, i64 0}
!3 = metadata !{metadata !"float", metadata !0}
!4 = metadata !{metadata !"int", metadata !0}