derek.holloway
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39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
LLVM
;; Tests that we store the type identifiers in .llvm.callgraph section of the object file for tailcalls.
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; REQUIRES: x86-registered-target
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; REQUIRES: arm-registered-target
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; RUN: llc -mtriple=x86_64-unknown-linux --call-graph-section -filetype=obj -o - < %s | \
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; RUN: llvm-readelf -x .llvm.callgraph - | FileCheck %s
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define i32 @check_tailcall(ptr %func, i8 %x) !type !0 {
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entry:
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%call = tail call i32 %func(i8 signext %x), !callee_type !1
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ret i32 %call
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}
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define i32 @main(i32 %argc) !type !3 {
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entry:
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%andop = and i32 %argc, 1
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%cmp = icmp eq i32 %andop, 0
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%foo.bar = select i1 %cmp, ptr @foo, ptr @bar
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%call.i = tail call i32 %foo.bar(i8 signext 97), !callee_type !1
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ret i32 %call.i
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}
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declare !type !2 i32 @foo(i8 signext)
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declare !type !2 i32 @bar(i8 signext)
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!0 = !{i64 0, !"_ZTSFiPvcE.generalized"}
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!1 = !{!2}
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!2 = !{i64 0, !"_ZTSFicE.generalized"}
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!3 = !{i64 0, !"_ZTSFiiE.generalized"}
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; CHECK: Hex dump of section '.llvm.callgraph':
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; CHECK-NEXT: 0x00000000 00050000 00000000 00008e19 0b7f3326
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; CHECK-NEXT: 0x00000010 e3000154 86bc5981 4b8e3000 05000000
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;; Verify that the type id 0x308e4b8159bc8654 is in section.
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; CHECK-NEXT: 0x00000020 00000000 00a150b8 3e0cfe3c b2015486
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; CHECK-NEXT: 0x00000030 bc59814b 8e30
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