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llvm-project/clang/test/CodeGen/nodebug-attr.c

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Fix debug info for NoDebug attr NoDebug attr does not totally eliminate debug info about a function when inlining is enabled. This is inconsistent with when inlining is disabled. This patch fixes that. Differential Revision: https://reviews.llvm.org/D79967
2020-05-15 11:09:30 +08:00
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm %s -O3 \
// RUN: -debug-info-kind=limited -o - -debugger-tuning=gdb -dwarf-version=4 \
// RUN: | FileCheck %s
// Makes sure there is no !dbg between function attributes and '{'.
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK-LABEL: define{{.*}} void @foo{{.*}} #{{[0-9]+}} {
Fix debug info for NoDebug attr NoDebug attr does not totally eliminate debug info about a function when inlining is enabled. This is inconsistent with when inlining is disabled. This patch fixes that. Differential Revision: https://reviews.llvm.org/D79967
2020-05-15 11:09:30 +08:00
// CHECK-NOT: ret {{.*}}!dbg
__attribute__((nodebug)) void foo(int *a) {
*a = 1;
}
// CHECK-LABEL: define {{.*}}@bar{{.*}}!dbg
void bar(int *a) {
foo(a);
}