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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
define void @matching_phi(i64 %a, float* %b, i1 %cond) {
; CHECK-LABEL: @matching_phi(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB2:%.*]], label [[BB1:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[ADDB:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 2
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[ADD_INT:%.*]] = add i64 [[A:%.*]], 1
; CHECK-NEXT: [[ADD:%.*]] = inttoptr i64 [[ADD_INT]] to float*
; CHECK-NEXT: store float 1.000000e+01, float* [[ADD]], align 4
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[A_ADDR_03:%.*]] = phi float* [ [[ADDB]], [[BB1]] ], [ [[ADD]], [[BB2]] ]
; CHECK-NEXT: [[I1:%.*]] = load float, float* [[A_ADDR_03]], align 4
; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[I1]], 4.200000e+01
; CHECK-NEXT: store float [[MUL_I]], float* [[A_ADDR_03]], align 4
; CHECK-NEXT: ret void
;
entry:
%cmp1 = icmp eq i1 %cond, 0
%add.int = add i64 %a, 1
%add = inttoptr i64 %add.int to float *
%addb = getelementptr inbounds float, float* %b, i64 2
%addb.int = ptrtoint float* %addb to i64
br i1 %cmp1, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
store float 1.0e+01, float* %add, align 4
br label %bb3
bb3:
%a.addr.03 = phi float* [ %addb, %bb1 ], [ %add, %bb2 ]
%b.addr.02 = phi i64 [ %addb.int, %bb1 ], [ %add.int, %bb2 ]
%i0 = inttoptr i64 %b.addr.02 to float*
%i1 = load float, float* %i0, align 4
%mul.i = fmul float %i1, 4.200000e+01
store float %mul.i, float* %a.addr.03, align 4
ret void
}
define void @no_matching_phi(i64 %a, float* %b, i1 %cond) {
; CHECK-LABEL: @no_matching_phi(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ADD_INT:%.*]] = add i64 [[A:%.*]], 1
; CHECK-NEXT: [[ADDB:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 2
; CHECK-NEXT: br i1 [[COND:%.*]], label [[B:%.*]], label [[A:%.*]]
; CHECK: A:
; CHECK-NEXT: br label [[C:%.*]]
; CHECK: B:
; CHECK-NEXT: [[ADDB_INT:%.*]] = ptrtoint float* [[ADDB]] to i64
; CHECK-NEXT: [[ADD:%.*]] = inttoptr i64 [[ADD_INT]] to float*
; CHECK-NEXT: store float 1.000000e+01, float* [[ADD]], align 4
; CHECK-NEXT: br label [[C]]
; CHECK: C:
; CHECK-NEXT: [[A_ADDR_03:%.*]] = phi float* [ [[ADDB]], [[A]] ], [ [[ADD]], [[B]] ]
; CHECK-NEXT: [[B_ADDR_02:%.*]] = phi i64 [ [[ADD_INT]], [[A]] ], [ [[ADDB_INT]], [[B]] ]
; CHECK-NEXT: [[I0:%.*]] = inttoptr i64 [[B_ADDR_02]] to float*
; CHECK-NEXT: [[I1:%.*]] = load float, float* [[I0]], align 4
; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[I1]], 4.200000e+01
; CHECK-NEXT: store float [[MUL_I]], float* [[A_ADDR_03]], align 4
; CHECK-NEXT: ret void
;
entry:
%cmp1 = icmp eq i1 %cond, 0
%add.int = add i64 %a, 1
%add = inttoptr i64 %add.int to float *
%addb = getelementptr inbounds float, float* %b, i64 2
%addb.int = ptrtoint float* %addb to i64
br i1 %cmp1, label %A, label %B
A:
br label %C
B:
store float 1.0e+01, float* %add, align 4
br label %C
C:
%a.addr.03 = phi float* [ %addb, %A ], [ %add, %B ]
%b.addr.02 = phi i64 [ %addb.int, %B ], [ %add.int, %A ]
%i0 = inttoptr i64 %b.addr.02 to float*
%i1 = load float, float* %i0, align 4
%mul.i = fmul float %i1, 4.200000e+01
store float %mul.i, float* %a.addr.03, align 4
ret void
}
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