90 lines
3.2 KiB
LLVM
90 lines
3.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define void @matching_phi(i64 %a, float* %b, i1 %cond) {
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; CHECK-LABEL: @matching_phi(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[ADD_INT:%.*]] = add i64 [[A:%.*]], 1
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; CHECK-NEXT: [[ADD:%.*]] = inttoptr i64 [[ADD_INT]] to float*
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[BBB:%.*]], label [[A:%.*]]
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; CHECK: A:
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; CHECK-NEXT: [[ADDB:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 2
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; CHECK-NEXT: br label [[C:%.*]]
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; CHECK: Bbb:
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; CHECK-NEXT: store float 1.000000e+01, float* [[ADD]], align 4
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; CHECK-NEXT: br label [[C]]
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; CHECK: C:
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; CHECK-NEXT: [[A_ADDR_03:%.*]] = phi float* [ [[ADDB]], [[A]] ], [ [[ADD]], [[BBB]] ]
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; CHECK-NEXT: [[I1:%.*]] = load float, float* [[A_ADDR_03]], align 4
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; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[I1]], 4.200000e+01
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; CHECK-NEXT: store float [[MUL_I]], float* [[A_ADDR_03]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%cmp1 = icmp eq i1 %cond, 0
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%add.int = add i64 %a, 1
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%add = inttoptr i64 %add.int to float *
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%addb = getelementptr inbounds float, float* %b, i64 2
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%addb.int = ptrtoint float* %addb to i64
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br i1 %cmp1, label %A, label %Bbb
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A:
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br label %C
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Bbb:
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store float 1.0e+01, float* %add, align 4
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br label %C
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C:
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%a.addr.03 = phi float* [ %addb, %A ], [ %add, %Bbb ]
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%b.addr.02 = phi i64 [ %addb.int, %A ], [ %add.int, %Bbb ]
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%i0 = inttoptr i64 %b.addr.02 to float*
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%i1 = load float, float* %i0, align 4
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%mul.i = fmul float %i1, 4.200000e+01
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store float %mul.i, float* %a.addr.03, align 4
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ret void
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}
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define void @no_matching_phi(i64 %a, float* %b, i1 %cond) {
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; CHECK-LABEL: @no_matching_phi(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[ADD_INT:%.*]] = add i64 [[A:%.*]], 1
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; CHECK-NEXT: [[ADD:%.*]] = inttoptr i64 [[ADD_INT]] to float*
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; CHECK-NEXT: [[ADDB:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 2
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[B:%.*]], label [[A:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br label [[C:%.*]]
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; CHECK: B:
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; CHECK-NEXT: store float 1.000000e+01, float* [[ADD]], align 4
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; CHECK-NEXT: br label [[C]]
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; CHECK: C:
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; CHECK-NEXT: [[A_ADDR_03:%.*]] = phi float* [ [[ADDB]], [[A]] ], [ [[ADD]], [[B]] ]
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; CHECK-NEXT: [[B_ADDR_02_PTR:%.*]] = phi float* [ [[ADD]], [[A]] ], [ [[ADDB]], [[B]] ]
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; CHECK-NEXT: [[I1:%.*]] = load float, float* [[B_ADDR_02_PTR]], align 4
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; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[I1]], 4.200000e+01
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; CHECK-NEXT: store float [[MUL_I]], float* [[A_ADDR_03]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%cmp1 = icmp eq i1 %cond, 0
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%add.int = add i64 %a, 1
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%add = inttoptr i64 %add.int to float *
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%addb = getelementptr inbounds float, float* %b, i64 2
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%addb.int = ptrtoint float* %addb to i64
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br i1 %cmp1, label %A, label %B
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A:
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br label %C
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B:
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store float 1.0e+01, float* %add, align 4
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br label %C
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C:
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%a.addr.03 = phi float* [ %addb, %A ], [ %add, %B ]
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%b.addr.02 = phi i64 [ %addb.int, %B ], [ %add.int, %A ]
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%i0 = inttoptr i64 %b.addr.02 to float*
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%i1 = load float, float* %i0, align 4
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%mul.i = fmul float %i1, 4.200000e+01
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store float %mul.i, float* %a.addr.03, align 4
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ret void
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}
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