103 lines
3.2 KiB
LLVM
103 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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; Passing select(cond, null, v) as nonnull should be optimized to passing v
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define nonnull i32* @pr48975(i32** %.0) {
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; CHECK-LABEL: @pr48975(
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; CHECK-NEXT: [[DOT1:%.*]] = load i32*, i32** [[DOT0:%.*]], align 8
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; CHECK-NEXT: [[DOT2:%.*]] = icmp eq i32* [[DOT1]], null
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; CHECK-NEXT: [[DOT3:%.*]] = bitcast i32** [[DOT0]] to i32*
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; CHECK-NEXT: [[DOT4:%.*]] = select i1 [[DOT2]], i32* null, i32* [[DOT3]]
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; CHECK-NEXT: ret i32* [[DOT4]]
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;
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%.1 = load i32*, i32** %.0, align 8
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%.2 = icmp eq i32* %.1, null
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%.3 = bitcast i32** %.0 to i32*
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%.4 = select i1 %.2, i32* null, i32* %.3
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ret i32* %.4
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}
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define nonnull i32* @nonnull_ret(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_ret(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* [[P:%.*]], i32* null
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; CHECK-NEXT: ret i32* [[RES]]
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;
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%res = select i1 %cond, i32* %p, i32* null
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ret i32* %res
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}
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define nonnull i32* @nonnull_ret2(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_ret2(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* null, i32* [[P:%.*]]
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; CHECK-NEXT: ret i32* [[RES]]
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;
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%res = select i1 %cond, i32* null, i32* %p
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ret i32* %res
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}
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define nonnull noundef i32* @nonnull_noundef_ret(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_noundef_ret(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* [[P:%.*]], i32* null
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; CHECK-NEXT: ret i32* [[RES]]
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;
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%res = select i1 %cond, i32* %p, i32* null
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ret i32* %res
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}
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define nonnull noundef i32* @nonnull_noundef_ret2(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_noundef_ret2(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* null, i32* [[P:%.*]]
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; CHECK-NEXT: ret i32* [[RES]]
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;
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%res = select i1 %cond, i32* null, i32* %p
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ret i32* %res
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}
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define void @nonnull_call(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_call(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* [[P:%.*]], i32* null
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; CHECK-NEXT: call void @f(i32* nonnull [[RES]])
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; CHECK-NEXT: ret void
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;
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%res = select i1 %cond, i32* %p, i32* null
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call void @f(i32* nonnull %res)
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ret void
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}
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define void @nonnull_call2(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_call2(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* null, i32* [[P:%.*]]
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; CHECK-NEXT: call void @f(i32* nonnull [[RES]])
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; CHECK-NEXT: ret void
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;
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%res = select i1 %cond, i32* null, i32* %p
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call void @f(i32* nonnull %res)
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ret void
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}
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define void @nonnull_noundef_call(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_noundef_call(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* [[P:%.*]], i32* null
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; CHECK-NEXT: call void @f(i32* noundef nonnull [[RES]])
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; CHECK-NEXT: ret void
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;
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%res = select i1 %cond, i32* %p, i32* null
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call void @f(i32* nonnull noundef %res)
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ret void
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}
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define void @nonnull_noundef_call2(i1 %cond, i32* %p) {
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; CHECK-LABEL: @nonnull_noundef_call2(
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND:%.*]], i32* null, i32* [[P:%.*]]
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; CHECK-NEXT: call void @f(i32* noundef nonnull [[RES]])
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; CHECK-NEXT: ret void
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;
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%res = select i1 %cond, i32* null, i32* %p
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call void @f(i32* nonnull noundef %res)
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ret void
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}
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declare void @f(i32*)
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