a538b0f023
Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
48 lines
2.2 KiB
LLVM
48 lines
2.2 KiB
LLVM
; RUN: llc -verify-machineinstrs -O2 < %s | FileCheck %s
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; The call to function TestBar should be a tail call, when in C++ the string
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; `ret` is RVO returned.
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; string TestFoo() {
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; string ret = undef;
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; TestBar(&ret); // tail call optimized
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; return ret;
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; }
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target triple = "powerpc64le-linux-gnu"
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%class.basic_string.11.42.73 = type { %"class.__gnu_cxx::__versa_string.10.41.72" }
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%"class.__gnu_cxx::__versa_string.10.41.72" = type { %"class.__gnu_cxx::__sso_string_base.9.40.71" }
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%"class.__gnu_cxx::__sso_string_base.9.40.71" = type { %"struct.__gnu_cxx::__vstring_utility<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider.7.38.69", i64, %union.anon.8.39.70 }
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%"struct.__gnu_cxx::__vstring_utility<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider.7.38.69" = type { i8* }
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%union.anon.8.39.70 = type { i64, [8 x i8] }
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declare void @TestBaz(%class.basic_string.11.42.73* noalias sret %arg)
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define void @TestBar(%class.basic_string.11.42.73* noalias sret %arg) {
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bb:
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call void @TestBaz(%class.basic_string.11.42.73* noalias sret %arg)
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ret void
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}
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define void @TestFoo(%class.basic_string.11.42.73* noalias sret %arg) {
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; CHECK-LABEL: TestFoo:
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; CHECK: #TC_RETURNd8 TestBar 0
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bb:
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%tmp = getelementptr inbounds %class.basic_string.11.42.73, %class.basic_string.11.42.73* %arg, i64 0, i32 0, i32 0, i32 2
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%tmp1 = bitcast %class.basic_string.11.42.73* %arg to %union.anon.8.39.70**
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store %union.anon.8.39.70* %tmp, %union.anon.8.39.70** %tmp1, align 8
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%tmp2 = bitcast %union.anon.8.39.70* %tmp to i8*
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tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp2, i8* nonnull undef, i64 13, i32 1, i1 false)
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%tmp3 = getelementptr inbounds %class.basic_string.11.42.73, %class.basic_string.11.42.73* %arg, i64 0, i32 0, i32 0, i32 1
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store i64 13, i64* %tmp3, align 8
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%tmp4 = getelementptr inbounds %class.basic_string.11.42.73, %class.basic_string.11.42.73* %arg, i64 0, i32 0, i32 0, i32 2, i32 1, i64 5
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store i8 0, i8* %tmp4, align 1
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tail call void @TestBar(%class.basic_string.11.42.73* noalias sret %arg)
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ret void
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}
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; Function Attrs: argmemonly nounwind
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #0
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attributes #0 = { argmemonly nounwind }
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