mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-10 06:54:54 +00:00
This needs review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127638 91177308-0d34-0410-b5e6-96231b3b80d8
106 lines
4.1 KiB
LLVM
106 lines
4.1 KiB
LLVM
; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
|
|
|
|
; The addrecs in this loop are analyzable only by using nsw information.
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64"
|
|
|
|
; CHECK: Classifying expressions for: @test1
|
|
define void @test1(double* %p) nounwind {
|
|
entry:
|
|
%tmp = load double* %p, align 8 ; <double> [#uses=1]
|
|
%tmp1 = fcmp ogt double %tmp, 2.000000e+00 ; <i1> [#uses=1]
|
|
br i1 %tmp1, label %bb.nph, label %return
|
|
|
|
bb.nph: ; preds = %entry
|
|
br label %bb
|
|
|
|
bb: ; preds = %bb1, %bb.nph
|
|
%i.01 = phi i32 [ %tmp8, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=3]
|
|
; CHECK: %i.01
|
|
; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%bb>
|
|
%tmp2 = sext i32 %i.01 to i64 ; <i64> [#uses=1]
|
|
%tmp3 = getelementptr double* %p, i64 %tmp2 ; <double*> [#uses=1]
|
|
%tmp4 = load double* %tmp3, align 8 ; <double> [#uses=1]
|
|
%tmp5 = fmul double %tmp4, 9.200000e+00 ; <double> [#uses=1]
|
|
%tmp6 = sext i32 %i.01 to i64 ; <i64> [#uses=1]
|
|
%tmp7 = getelementptr double* %p, i64 %tmp6 ; <double*> [#uses=1]
|
|
; CHECK: %tmp7
|
|
; CHECK-NEXT: --> {%p,+,8}<%bb>
|
|
store double %tmp5, double* %tmp7, align 8
|
|
%tmp8 = add nsw i32 %i.01, 1 ; <i32> [#uses=2]
|
|
; CHECK: %tmp8
|
|
; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%bb>
|
|
br label %bb1
|
|
|
|
bb1: ; preds = %bb
|
|
%phitmp = sext i32 %tmp8 to i64 ; <i64> [#uses=1]
|
|
; CHECK: %phitmp
|
|
; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%bb>
|
|
%tmp9 = getelementptr double* %p, i64 %phitmp ; <double*> [#uses=1]
|
|
; CHECK: %tmp9
|
|
; CHECK-NEXT: --> {(8 + %p),+,8}<%bb>
|
|
%tmp10 = load double* %tmp9, align 8 ; <double> [#uses=1]
|
|
%tmp11 = fcmp ogt double %tmp10, 2.000000e+00 ; <i1> [#uses=1]
|
|
br i1 %tmp11, label %bb, label %bb1.return_crit_edge
|
|
|
|
bb1.return_crit_edge: ; preds = %bb1
|
|
br label %return
|
|
|
|
return: ; preds = %bb1.return_crit_edge, %entry
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Classifying expressions for: @test2
|
|
define void @test2(i32* %begin, i32* %end) ssp {
|
|
entry:
|
|
%cmp1.i.i = icmp eq i32* %begin, %end
|
|
br i1 %cmp1.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.lr.ph.i.i
|
|
|
|
for.body.lr.ph.i.i: ; preds = %entry
|
|
br label %for.body.i.i
|
|
|
|
for.body.i.i: ; preds = %for.body.i.i, %for.body.lr.ph.i.i
|
|
%__first.addr.02.i.i = phi i32* [ %begin, %for.body.lr.ph.i.i ], [ %ptrincdec.i.i, %for.body.i.i ]
|
|
; CHECK: %__first.addr.02.i.i
|
|
; CHECK-NEXT: --> {%begin,+,4}<nw><%for.body.i.i>
|
|
store i32 0, i32* %__first.addr.02.i.i, align 4
|
|
%ptrincdec.i.i = getelementptr inbounds i32* %__first.addr.02.i.i, i64 1
|
|
; CHECK: %ptrincdec.i.i
|
|
; CHECK-NEXT: --> {(4 + %begin),+,4}<nw><%for.body.i.i>
|
|
%cmp.i.i = icmp eq i32* %ptrincdec.i.i, %end
|
|
br i1 %cmp.i.i, label %for.cond.for.end_crit_edge.i.i, label %for.body.i.i
|
|
|
|
for.cond.for.end_crit_edge.i.i: ; preds = %for.body.i.i
|
|
br label %_ZSt4fillIPiiEvT_S1_RKT0_.exit
|
|
|
|
_ZSt4fillIPiiEvT_S1_RKT0_.exit: ; preds = %entry, %for.cond.for.end_crit_edge.i.i
|
|
ret void
|
|
}
|
|
|
|
; Various checks for inbounds geps.
|
|
define void @test3(i32* %begin, i32* %end) nounwind ssp {
|
|
entry:
|
|
%cmp7.i.i = icmp eq i32* %begin, %end
|
|
br i1 %cmp7.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.i.i
|
|
|
|
for.body.i.i: ; preds = %entry, %for.body.i.i
|
|
%indvar.i.i = phi i64 [ %tmp, %for.body.i.i ], [ 0, %entry ]
|
|
; CHECK: %indvar.i.i
|
|
; CHECK: {0,+,1}<nuw><nsw><%for.body.i.i>
|
|
%tmp = add nsw i64 %indvar.i.i, 1
|
|
; CHECK: %tmp =
|
|
; CHECK: {1,+,1}<nuw><nsw><%for.body.i.i>
|
|
%ptrincdec.i.i = getelementptr inbounds i32* %begin, i64 %tmp
|
|
; CHECK: %ptrincdec.i.i =
|
|
; CHECK: {(4 + %begin),+,4}<nsw><%for.body.i.i>
|
|
%__first.addr.08.i.i = getelementptr inbounds i32* %begin, i64 %indvar.i.i
|
|
; CHECK: %__first.addr.08.i.i
|
|
; CHECK: {%begin,+,4}<nsw><%for.body.i.i>
|
|
store i32 0, i32* %__first.addr.08.i.i, align 4
|
|
%cmp.i.i = icmp eq i32* %ptrincdec.i.i, %end
|
|
br i1 %cmp.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.i.i
|
|
; CHECK: Loop %for.body.i.i: backedge-taken count is ((-4 + (-1 * %begin) + %end) /u 4)
|
|
; CHECK: Loop %for.body.i.i: max backedge-taken count is ((-4 + (-1 * %begin) + %end) /u 4)
|
|
_ZSt4fillIPiiEvT_S1_RKT0_.exit: ; preds = %for.body.i.i, %entry
|
|
ret void
|
|
} |