13a044c699
When clang generates an nrvo boolean flag, the dbg.declare for the corresponding variable was incorrectly placed on that flag, rather than the actual variable. Fix this by not overwriting AllocaAddr with the nrvo flag. This started causing verifier errors with D158743. Differential Revision: https://reviews.llvm.org/D158972
34 lines
1.8 KiB
C++
34 lines
1.8 KiB
C++
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --functions "makeTrivial" --version 2
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// RUN: %clang_cc1 -debug-info-kind=limited -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
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struct __attribute__((trivial_abi)) Trivial {
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~Trivial() {}
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int ivar = 10;
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};
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// The dbg.declare should be on %retval, not on %nrvo.
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// CHECK-LABEL: define dso_local i32 @_Z11makeTrivialv
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// CHECK-SAME: () #[[ATTR0:[0-9]+]] !dbg [[DBG5:![0-9]+]] {
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RETVAL:%.*]] = alloca [[STRUCT_TRIVIAL:%.*]], align 4
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// CHECK-NEXT: [[NRVO:%.*]] = alloca i1, align 1
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// CHECK-NEXT: store i1 false, ptr [[NRVO]], align 1, !dbg [[DBG18:![0-9]+]]
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// CHECK-NEXT: call void @llvm.dbg.declare(metadata ptr [[RETVAL]], metadata [[META19:![0-9]+]], metadata !DIExpression()), !dbg [[DBG20:![0-9]+]]
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// CHECK-NEXT: call void @_ZN7TrivialC1Ev(ptr noundef nonnull align 4 dereferenceable(4) [[RETVAL]]) #[[ATTR3:[0-9]+]], !dbg [[DBG20]]
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// CHECK-NEXT: store i1 true, ptr [[NRVO]], align 1, !dbg [[DBG21:![0-9]+]]
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// CHECK-NEXT: [[NRVO_VAL:%.*]] = load i1, ptr [[NRVO]], align 1, !dbg [[DBG22:![0-9]+]]
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// CHECK-NEXT: br i1 [[NRVO_VAL]], label [[NRVO_SKIPDTOR:%.*]], label [[NRVO_UNUSED:%.*]], !dbg [[DBG22]]
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// CHECK: nrvo.unused:
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// CHECK-NEXT: call void @_ZN7TrivialD1Ev(ptr noundef nonnull align 4 dereferenceable(4) [[RETVAL]]) #[[ATTR3]], !dbg [[DBG22]]
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// CHECK-NEXT: br label [[NRVO_SKIPDTOR]], !dbg [[DBG22]]
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// CHECK: nrvo.skipdtor:
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// CHECK-NEXT: [[COERCE_DIVE:%.*]] = getelementptr inbounds [[STRUCT_TRIVIAL]], ptr [[RETVAL]], i32 0, i32 0, !dbg [[DBG22]]
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[COERCE_DIVE]], align 4, !dbg [[DBG22]]
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// CHECK-NEXT: ret i32 [[TMP0]], !dbg [[DBG22]]
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//
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Trivial makeTrivial() {
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Trivial ret_val;
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return ret_val;
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}
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