================
@@ -0,0 +1,73 @@
+; Tests that we store the type identifiers in .callgraph section of the binary.
+
+; RUN: llc --call-graph-section -filetype=obj -o - < %s | \
+; RUN: llvm-readelf -x .callgraph - | FileCheck %s
+
+target triple = "x86_64-unknown-linux-gnu"
+
+define dso_local void @foo() #0 !type !4 {
+entry:
+ ret void
+}
+
+define dso_local i32 @bar(i8 signext %a) #0 !type !5 {
+entry:
+ %a.addr = alloca i8, align 1
+ store i8 %a, i8* %a.addr, align 1
+ ret i32 0
+}
+
+define dso_local i32* @baz(i8* %a) #0 !type !6 {
+entry:
+ %a.addr = alloca i8*, align 8
+ store i8* %a, i8** %a.addr, align 8
+ ret i32* null
+}
+
+define dso_local i32 @main() #0 !type !7 {
+entry:
+ %retval = alloca i32, align 4
+ %fp_foo = alloca void (...)*, align 8
+ %a = alloca i8, align 1
+ %fp_bar = alloca i32 (i8)*, align 8
+ %fp_baz = alloca i32* (i8*)*, align 8
+ store i32 0, i32* %retval, align 4
+ store void (...)* bitcast (void ()* @foo to void (...)*), void (...)**
%fp_foo, align 8
+ %0 = load void (...)*, void (...)** %fp_foo, align 8
+ call void (...) %0() [ "type"(metadata !"_ZTSFvE.generalized") ]
+ store i32 (i8)* @bar, i32 (i8)** %fp_bar, align 8
+ %1 = load i32 (i8)*, i32 (i8)** %fp_bar, align 8
+ %2 = load i8, i8* %a, align 1
+ %call = call i32 %1(i8 signext %2) [ "type"(metadata
!"_ZTSFicE.generalized") ]
+ store i32* (i8*)* @baz, i32* (i8*)** %fp_baz, align 8
+ %3 = load i32* (i8*)*, i32* (i8*)** %fp_baz, align 8
+ %call1 = call i32* %3(i8* %a) [ "type"(metadata !"_ZTSFPvS_E.generalized") ]
+ call void @foo() [ "type"(metadata !"_ZTSFvE.generalized") ]
+ %4 = load i8, i8* %a, align 1
+ %call2 = call i32 @bar(i8 signext %4) [ "type"(metadata
!"_ZTSFicE.generalized") ]
+ %call3 = call i32* @baz(i8* %a) [ "type"(metadata !"_ZTSFPvS_E.generalized")
]
+ ret i32 0
----------------
ilovepi wrote:
I think this can be simplified a great deal. `llvm-reduce` may get you what you
need, but at minimum, you don't need to use `main` w/ a return value. And I see
lots of typed pointers, which opt will upgrade on its own.
https://github.com/llvm/llvm-project/pull/87576
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