dc2b66b8d6
These tests cases were converted using the script at https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34, but there was also a need to re-run update_test_checks.py (impacting nonnull/dereferencable attributes). Differential Revision: https://reviews.llvm.org/D135095
62 lines
1.7 KiB
LLVM
62 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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@hello = constant [6 x i8] c"hello\00"
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@null = constant [1 x i8] zeroinitializer
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declare ptr @strndup(ptr, i64)
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define ptr @test1() {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(1) ptr @strdup(ptr nonnull @null)
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; CHECK-NEXT: ret ptr [[STRDUP]]
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;
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%ret = call ptr @strndup(ptr @null, i64 0)
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ret ptr %ret
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}
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define ptr @test2() {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[RET:%.*]] = call dereferenceable_or_null(5) ptr @strndup(ptr nonnull dereferenceable(6) @hello, i64 4)
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; CHECK-NEXT: ret ptr [[RET]]
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;
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%ret = call ptr @strndup(ptr @hello, i64 4)
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ret ptr %ret
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}
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define ptr @test3() {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(6) ptr @strdup(ptr nonnull @hello)
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; CHECK-NEXT: ret ptr [[STRDUP]]
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;
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%ret = call ptr @strndup(ptr @hello, i64 5)
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ret ptr %ret
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}
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define ptr @test4() {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(6) ptr @strdup(ptr nonnull @hello)
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; CHECK-NEXT: ret ptr [[STRDUP]]
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;
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%ret = call ptr @strndup(ptr @hello, i64 6)
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ret ptr %ret
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}
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define ptr @test5() {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(6) ptr @strdup(ptr nonnull @hello)
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; CHECK-NEXT: ret ptr [[STRDUP]]
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;
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%ret = call ptr @strndup(ptr @hello, i64 7)
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ret ptr %ret
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}
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define ptr @test6(i64 %n) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: [[RET:%.*]] = call ptr @strndup(ptr nonnull @hello, i64 [[N:%.*]])
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; CHECK-NEXT: ret ptr [[RET]]
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;
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%ret = call ptr @strndup(ptr @hello, i64 %n)
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ret ptr %ret
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}
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