2013-04-23 19:56:03 +00:00
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; RUN: opt -inline -S < %s | FileCheck %s
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; Created from source
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2013-04-24 01:44:15 +00:00
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;
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;
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; 1 // test.cpp
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; 2 extern int global_var;
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; 3 extern int test_ext(int k);
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; 4 int test (int k) {
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; 5 int k2 = test_ext(k);
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; 6 if (k2 > 100)
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; 7 return k2;
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; 8 return 0;
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; 9 }
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; 10
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; 11 int test2() {
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; 12 try
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; 13 {
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; 14 test(global_var);
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; 15 }
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; 16 catch (int e) {
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; 17 global_var = 0;
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; 18 }
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; 19 global_var = 1;
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; 20 return 0;
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; 21 }
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; CHECK: _Z4testi.exit:
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2013-04-29 22:25:52 +00:00
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; Make sure the branch instruction created during inlining has a debug location,
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; so the range of the inlined function is correct.
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2013-04-24 01:44:15 +00:00
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; CHECK: br label %invoke.cont, !dbg ![[MD:[0-9]+]]
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; The branch instruction has the source location of line 9 and its inlined location
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; has the source location of line 14.
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; CHECK: ![[INL:[0-9]+]] = metadata !{i32 14, i32 0, metadata {{.*}}, null}
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; CHECK: ![[MD]] = metadata !{i32 9, i32 0, metadata {{.*}}, metadata ![[INL]]}
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; ModuleID = 'test.cpp'
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-darwin12.0.0"
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2013-04-23 19:56:03 +00:00
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@_ZTIi = external constant i8*
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@global_var = external global i32
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2013-04-24 01:44:15 +00:00
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define i32 @_Z4testi(i32 %k) {
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entry:
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%retval = alloca i32, align 4
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%k.addr = alloca i32, align 4
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%k2 = alloca i32, align 4
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store i32 %k, i32* %k.addr, align 4
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2014-10-03 20:01:09 +00:00
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call void @llvm.dbg.declare(metadata !{i32* %k.addr}, metadata !13, metadata !{metadata !"0x102"}), !dbg !14
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call void @llvm.dbg.declare(metadata !{i32* %k2}, metadata !15, metadata !{metadata !"0x102"}), !dbg !16
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2013-04-24 01:44:15 +00:00
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%0 = load i32* %k.addr, align 4, !dbg !16
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%call = call i32 @_Z8test_exti(i32 %0), !dbg !16
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store i32 %call, i32* %k2, align 4, !dbg !16
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%1 = load i32* %k2, align 4, !dbg !17
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%cmp = icmp sgt i32 %1, 100, !dbg !17
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br i1 %cmp, label %if.then, label %if.end, !dbg !17
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if.then: ; preds = %entry
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%2 = load i32* %k2, align 4, !dbg !18
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store i32 %2, i32* %retval, !dbg !18
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br label %return, !dbg !18
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if.end: ; preds = %entry
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store i32 0, i32* %retval, !dbg !19
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br label %return, !dbg !19
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return: ; preds = %if.end, %if.then
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%3 = load i32* %retval, !dbg !20
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ret i32 %3, !dbg !20
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}
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; Function Attrs: nounwind readnone
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Move the complex address expression out of DIVariable and into an extra
argument of the llvm.dbg.declare/llvm.dbg.value intrinsics.
Previously, DIVariable was a variable-length field that has an optional
reference to a Metadata array consisting of a variable number of
complex address expressions. In the case of OpPiece expressions this is
wasting a lot of storage in IR, because when an aggregate type is, e.g.,
SROA'd into all of its n individual members, the IR will contain n copies
of the DIVariable, all alike, only differing in the complex address
reference at the end.
By making the complex address into an extra argument of the
dbg.value/dbg.declare intrinsics, all of the pieces can reference the
same variable and the complex address expressions can be uniqued across
the CU, too.
Down the road, this will allow us to move other flags, such as
"indirection" out of the DIVariable, too.
The new intrinsics look like this:
declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr)
declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr)
This patch adds a new LLVM-local tag to DIExpressions, so we can detect
and pretty-print DIExpression metadata nodes.
What this patch doesn't do:
This patch does not touch the "Indirect" field in DIVariable; but moving
that into the expression would be a natural next step.
http://reviews.llvm.org/D4919
rdar://problem/17994491
Thanks to dblaikie and dexonsmith for reviewing this patch!
Note: I accidentally committed a bogus older version of this patch previously.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218787 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-01 18:55:02 +00:00
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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2013-04-24 01:44:15 +00:00
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declare i32 @_Z8test_exti(i32)
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define i32 @_Z5test2v() {
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2013-04-23 19:56:03 +00:00
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entry:
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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%e = alloca i32, align 4
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2013-04-24 01:44:15 +00:00
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%0 = load i32* @global_var, align 4, !dbg !21
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2013-04-23 19:56:03 +00:00
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%call = invoke i32 @_Z4testi(i32 %0)
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2013-04-24 01:44:15 +00:00
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to label %invoke.cont unwind label %lpad, !dbg !21
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2013-04-23 19:56:03 +00:00
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2013-04-24 01:44:15 +00:00
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invoke.cont: ; preds = %entry
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br label %try.cont, !dbg !23
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2013-04-23 19:56:03 +00:00
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2013-04-24 01:44:15 +00:00
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lpad: ; preds = %entry
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2013-04-23 19:56:03 +00:00
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%1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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2013-04-24 01:44:15 +00:00
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catch i8* bitcast (i8** @_ZTIi to i8*), !dbg !21
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%2 = extractvalue { i8*, i32 } %1, 0, !dbg !21
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store i8* %2, i8** %exn.slot, !dbg !21
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%3 = extractvalue { i8*, i32 } %1, 1, !dbg !21
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store i32 %3, i32* %ehselector.slot, !dbg !21
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br label %catch.dispatch, !dbg !21
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catch.dispatch: ; preds = %lpad
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%sel = load i32* %ehselector.slot, !dbg !23
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%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) #2, !dbg !23
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%matches = icmp eq i32 %sel, %4, !dbg !23
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br i1 %matches, label %catch, label %eh.resume, !dbg !23
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catch: ; preds = %catch.dispatch
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2014-10-03 20:01:09 +00:00
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call void @llvm.dbg.declare(metadata !{i32* %e}, metadata !24, metadata !{metadata !"0x102"}), !dbg !25
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2013-04-24 01:44:15 +00:00
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%exn = load i8** %exn.slot, !dbg !23
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%5 = call i8* @__cxa_begin_catch(i8* %exn) #2, !dbg !23
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%6 = bitcast i8* %5 to i32*, !dbg !23
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%7 = load i32* %6, align 4, !dbg !23
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store i32 %7, i32* %e, align 4, !dbg !23
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store i32 0, i32* @global_var, align 4, !dbg !26
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call void @__cxa_end_catch() #2, !dbg !28
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br label %try.cont, !dbg !28
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try.cont: ; preds = %catch, %invoke.cont
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store i32 1, i32* @global_var, align 4, !dbg !29
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ret i32 0, !dbg !30
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eh.resume: ; preds = %catch.dispatch
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%exn1 = load i8** %exn.slot, !dbg !23
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%sel2 = load i32* %ehselector.slot, !dbg !23
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn1, 0, !dbg !23
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%lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %sel2, 1, !dbg !23
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resume { i8*, i32 } %lpad.val3, !dbg !23
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2013-04-23 19:56:03 +00:00
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}
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declare i32 @__gxx_personality_v0(...)
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2013-04-24 01:44:15 +00:00
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*) #1
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2013-04-23 19:56:03 +00:00
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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2013-04-24 01:44:15 +00:00
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attributes #1 = { nounwind readnone }
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attributes #2 = { nounwind }
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2013-04-23 19:56:03 +00:00
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!llvm.dbg.cu = !{!0}
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2013-11-22 21:49:45 +00:00
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!llvm.module.flags = !{!31}
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2013-04-23 19:56:03 +00:00
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2014-10-03 20:01:09 +00:00
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!0 = metadata !{metadata !"0x11\004\00clang version 3.3 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
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2013-04-24 01:44:15 +00:00
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!1 = metadata !{metadata !"<unknown>", metadata !""}
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!2 = metadata !{i32 0}
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!3 = metadata !{metadata !4, metadata !10}
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2014-10-03 20:01:09 +00:00
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!4 = metadata !{metadata !"0x2e\00test\00test\00_Z4testi\004\000\001\000\006\00256\000\004", metadata !5, metadata !6, metadata !7, null, i32 (i32)* @_Z4testi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [test]
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2013-04-24 01:44:15 +00:00
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!5 = metadata !{metadata !"test.cpp", metadata !""}
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2014-10-03 20:01:09 +00:00
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!6 = metadata !{metadata !"0x29", metadata !5} ; [ DW_TAG_file_type ] [test.cpp]
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!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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2013-04-24 01:44:15 +00:00
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!8 = metadata !{metadata !9, metadata !9}
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2014-10-03 20:01:09 +00:00
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!9 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!10 = metadata !{metadata !"0x2e\00test2\00test2\00_Z5test2v\0011\000\001\000\006\00256\000\0011", metadata !5, metadata !6, metadata !11, null, i32 ()* @_Z5test2v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 11] [def] [test2]
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!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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2013-04-24 01:44:15 +00:00
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!12 = metadata !{metadata !9}
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2014-10-03 20:01:09 +00:00
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!13 = metadata !{metadata !"0x101\00k\0016777220\000", metadata !4, metadata !6, metadata !9} ; [ DW_TAG_arg_variable ] [k] [line 4]
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2013-04-24 01:44:15 +00:00
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!14 = metadata !{i32 4, i32 0, metadata !4, null}
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2014-10-03 20:01:09 +00:00
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!15 = metadata !{metadata !"0x100\00k2\005\000", metadata !4, metadata !6, metadata !9} ; [ DW_TAG_auto_variable ] [k2] [line 5]
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2013-04-24 01:44:15 +00:00
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!16 = metadata !{i32 5, i32 0, metadata !4, null}
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!17 = metadata !{i32 6, i32 0, metadata !4, null}
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!18 = metadata !{i32 7, i32 0, metadata !4, null}
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!19 = metadata !{i32 8, i32 0, metadata !4, null}
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!20 = metadata !{i32 9, i32 0, metadata !4, null}
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!21 = metadata !{i32 14, i32 0, metadata !22, null}
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2014-10-03 20:01:09 +00:00
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!22 = metadata !{metadata !"0xb\0013\000\000", metadata !5, metadata !10} ; [ DW_TAG_lexical_block ] [test.cpp]
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2013-04-24 01:44:15 +00:00
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!23 = metadata !{i32 15, i32 0, metadata !22, null}
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2014-10-03 20:01:09 +00:00
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!24 = metadata !{metadata !"0x100\00e\0016\000", metadata !10, metadata !6, metadata !9} ; [ DW_TAG_auto_variable ] [e] [line 16]
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2013-04-24 01:44:15 +00:00
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!25 = metadata !{i32 16, i32 0, metadata !10, null}
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!26 = metadata !{i32 17, i32 0, metadata !27, null}
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2014-10-03 20:01:09 +00:00
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!27 = metadata !{metadata !"0xb\0016\000\001", metadata !5, metadata !10} ; [ DW_TAG_lexical_block ] [test.cpp]
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2013-04-24 01:44:15 +00:00
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!28 = metadata !{i32 18, i32 0, metadata !27, null}
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!29 = metadata !{i32 19, i32 0, metadata !10, null}
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!30 = metadata !{i32 20, i32 0, metadata !10, null}
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2014-10-03 20:01:09 +00:00
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!31 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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