mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-10 06:54:54 +00:00
Some BBs can become dead after codegen preparation. If we delete them here, it could help enable tail-call optimizations later on. <rdar://problem/10256573> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152002 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
2.3 KiB
LLVM
56 lines
2.3 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-darwin10 -relocation-model=pic -disable-fp-elim -disable-cgp-delete-dead-blocks -mcpu=cortex-a8 | FileCheck %s
|
|
|
|
; Do not form Thumb2 ldrd / strd if the offset is not multiple of 4.
|
|
; rdar://9133587
|
|
|
|
%struct.Outer = type { i32, [2 x %"struct.Outer::Inner"] }
|
|
%"struct.Outer::Inner" = type { i32, i32, i8, i8 }
|
|
|
|
@oStruct = external global %struct.Outer, align 4
|
|
|
|
define void @main() nounwind {
|
|
; CHECK: main:
|
|
; CHECK-NOT: ldrd
|
|
; CHECK: mul
|
|
for.body.lr.ph:
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %_Z14printIsNotZeroi.exit17.for.body_crit_edge, %for.body.lr.ph
|
|
%tmp3 = phi i1 [ false, %for.body.lr.ph ], [ %phitmp27, %_Z14printIsNotZeroi.exit17.for.body_crit_edge ]
|
|
%i.022 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %_Z14printIsNotZeroi.exit17.for.body_crit_edge ]
|
|
%x = getelementptr %struct.Outer* @oStruct, i32 0, i32 1, i32 %i.022, i32 0
|
|
%y = getelementptr %struct.Outer* @oStruct, i32 0, i32 1, i32 %i.022, i32 1
|
|
%inc = add i32 %i.022, 1
|
|
br i1 %tmp3, label %_Z14printIsNotZeroi.exit, label %if.then.i
|
|
|
|
if.then.i: ; preds = %for.body
|
|
unreachable
|
|
|
|
_Z14printIsNotZeroi.exit: ; preds = %for.body
|
|
%tmp8 = load i32* %x, align 4, !tbaa !0
|
|
%tmp11 = load i32* %y, align 4, !tbaa !0
|
|
%mul = mul nsw i32 %tmp11, %tmp8
|
|
%tobool.i14 = icmp eq i32 %mul, 0
|
|
br i1 %tobool.i14, label %_Z14printIsNotZeroi.exit17, label %if.then.i16
|
|
|
|
if.then.i16: ; preds = %_Z14printIsNotZeroi.exit
|
|
unreachable
|
|
|
|
_Z14printIsNotZeroi.exit17: ; preds = %_Z14printIsNotZeroi.exit
|
|
br i1 undef, label %_Z14printIsNotZeroi.exit17.for.body_crit_edge, label %for.end
|
|
|
|
_Z14printIsNotZeroi.exit17.for.body_crit_edge: ; preds = %_Z14printIsNotZeroi.exit17
|
|
%b.phi.trans.insert = getelementptr %struct.Outer* @oStruct, i32 0, i32 1, i32 %inc, i32 3
|
|
%tmp3.pre = load i8* %b.phi.trans.insert, align 1, !tbaa !3
|
|
%phitmp27 = icmp eq i8 undef, 0
|
|
br label %for.body
|
|
|
|
for.end: ; preds = %_Z14printIsNotZeroi.exit17
|
|
ret void
|
|
}
|
|
|
|
!0 = metadata !{metadata !"int", metadata !1}
|
|
!1 = metadata !{metadata !"omnipotent char", metadata !2}
|
|
!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
|
|
!3 = metadata !{metadata !"bool", metadata !1}
|