65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
// RUN: %clang_cc1 -g -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s
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// Make sure that clang outputs distinct debug info for a function
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// that is inlined twice on the same line. Otherwise it would appear
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// as if the function was only inlined once.
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#define INLINE inline __attribute__((always_inline))
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int i;
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INLINE void sum(int a, int b) {
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i = a + b;
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}
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void noinline(int x, int y) {
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i = x + y;
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}
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#define CALLS sum(9, 10), sum(11, 12)
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inline void inlsum(int t, int u) {
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i = t + u;
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}
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int main() {
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sum(1, 2), sum(3, 4);
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noinline(5, 6), noinline(7, 8);
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CALLS;
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inlsum(13, 14), inlsum(15, 16);
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}
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// CHECK-LABEL: @main
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// CHECK: = add {{.*}} !dbg [[FIRST_INLINE:![0-9]*]]
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// CHECK: = add {{.*}} !dbg [[SECOND_INLINE:![0-9]*]]
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// Check that we don't give column information (and thus end up with distinct
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// line entries) for two non-inlined calls on the same line.
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// CHECK: call {{.*}}noinline{{.*}}({{i32[ ]?[a-z]*}} 5, {{i32[ ]?[a-z]*}} 6), !dbg [[NOINLINE:![0-9]*]]
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// CHECK: call {{.*}}noinline{{.*}}({{i32[ ]?[a-z]*}} 7, {{i32[ ]?[a-z]*}} 8), !dbg [[NOINLINE]]
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// FIXME: These should be separate locations but because the two calls have the
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// same line /and/ column, they get coalesced into a single inlined call by
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// accident. We need discriminators or some other changes to LLVM to cope with
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// this. (this is, unfortunately, an LLVM test disguised as a Clang test - since
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// inlining is forced to happen here). It's possible this could be fixed in
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// Clang, but I doubt it'll be the right place for the fix.
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// CHECK: = add {{.*}} !dbg [[FIRST_MACRO_INLINE:![0-9]*]]
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// CHECK: = add {{.*}} !dbg [[FIRST_MACRO_INLINE]]
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// Even if the functions are marked inline but do not get inlined, they
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// shouldn't use column information, and thus should be at the same debug
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// location.
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// CHECK: call {{.*}}inlsum{{.*}}({{i32[ ]?[a-z]*}} 13, {{i32[ ]?[a-z]*}} 14), !dbg [[INL_FIRST:![0-9]*]]
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// CHECK: call {{.*}}inlsum{{.*}}({{i32[ ]?[a-z]*}} 15, {{i32[ ]?[a-z]*}} 16), !dbg [[INL_SECOND:![0-9]*]]
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// [[FIRST_INLINE]] =
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// [[SECOND_INLINE]] =
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// FIXME: These should be the same location since the functions appear on the
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// same line and were not inlined - they needlessly have column information
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// intended to disambiguate inlined calls, which is going to confuse GDB as it
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// doesn't cope well with column information.
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// [[INL_FIRST]] =
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// [[INL_SECOND]] =
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