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Parse and print DIExpressions inline to ease IR and MIR testing

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Summary:
Most DIExpressions are empty or very simple. When they are complex, they
tend to be unique, so checking them inline is reasonable.

This also avoids the need for CodeGen passes to append to the
llvm.dbg.mir named md node.

See also PR22780, for making DIExpression not be an MDNode.

Reviewers: aprantl, dexonsmith, dblaikie

Subscribers: qcolombet, javed.absar, eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D37075

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311594 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
2017-08-23 20:31:27 +00:00
parent 35d604386e
commit a5b2af0eae
48 changed files with 336 additions and 288 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/Transforms/SafeStack/X86/debug-loc-dynamic.ll
+1 -2
View File
@@ -14,7 +14,7 @@ entry:
%0 = zext i32 %n to i64, !dbg !16
; CHECK: store i8* %[[VLA:.*]], i8** @__safestack_unsafe_stack_ptr
; CHECK: tail call void @llvm.dbg.value(metadata i8* %[[VLA]], metadata ![[TYPE:.*]], metadata ![[EXPR:.*]])
; CHECK: tail call void @llvm.dbg.value(metadata i8* %[[VLA]], metadata ![[TYPE:.*]], metadata !DIExpression(DW_OP_deref))
; CHECK: call void @capture({{.*}} %[[VLA]])
%vla = alloca i8, i64 %0, align 16, !dbg !16
@@ -50,7 +50,6 @@ declare void @llvm.dbg.value(metadata, metadata, metadata)
!15 = !DILocation(line: 2, column: 12, scope: !6)
!16 = !DILocation(line: 3, column: 3, scope: !6)
; CHECK-DAG: ![[EXPR]] = !DIExpression(DW_OP_deref)
!17 = !DIExpression(DW_OP_deref)
!18 = !DILocation(line: 3, column: 8, scope: !6)
!19 = !DILocation(line: 4, column: 3, scope: !6)
test/Transforms/SafeStack/X86/debug-loc.ll
+2 -4
View File
@@ -20,9 +20,9 @@ entry:
; dbg.declare for %zzz and %xxx are gone; replaced with dbg.declare based off the unsafe stack pointer
; CHECK-NOT: call void @llvm.dbg.declare
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_ARG:.*]], metadata ![[EXPR_ARG:.*]])
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_ARG:.*]], metadata !DIExpression(DW_OP_constu, 104, DW_OP_minus))
; CHECK-NOT: call void @llvm.dbg.declare
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_LOCAL:.*]], metadata ![[EXPR_LOCAL:.*]])
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_LOCAL:.*]], metadata !DIExpression(DW_OP_constu, 208, DW_OP_minus))
; CHECK-NOT: call void @llvm.dbg.declare
call void @Capture(%struct.S* %zzz), !dbg !23
@@ -37,10 +37,8 @@ entry:
; CHECK-DAG: ![[VAR_ARG]] = !DILocalVariable(name: "zzz"
; 100 aligned up to 8
; CHECK-DAG: ![[EXPR_ARG]] = !DIExpression(DW_OP_constu, 104, DW_OP_minus
; CHECK-DAG: ![[VAR_LOCAL]] = !DILocalVariable(name: "xxx"
; CHECK-DAG: ![[EXPR_LOCAL]] = !DIExpression(DW_OP_constu, 208, DW_OP_minus
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
test/Transforms/SafeStack/X86/debug-loc2.ll
+2 -4
View File
@@ -25,7 +25,7 @@ entry:
tail call void @llvm.dbg.value(metadata i32* %x1, metadata !10, metadata !24), !dbg !16
; Supported dbg.value: rewritted based on the [[USP]] value.
; CHECK: call void @llvm.dbg.value(metadata i8* %[[USP]], metadata ![[X1:.*]], metadata ![[X1_EXPR:.*]])
; CHECK: call void @llvm.dbg.value(metadata i8* %[[USP]], metadata ![[X1:.*]], metadata !DIExpression(DW_OP_deref, DW_OP_constu, 4, DW_OP_minus))
tail call void @llvm.dbg.value(metadata i32* %x1, metadata !10, metadata !15), !dbg !16
call void @capture(i32* nonnull %x1), !dbg !17
@@ -33,7 +33,7 @@ entry:
; CHECK: call void @llvm.random.metadata.use(metadata ![[EMPTY]])
call void @llvm.random.metadata.use(metadata i32* %x2)
; CHECK: call void @llvm.dbg.value(metadata i8* %[[USP]], metadata ![[X2:.*]], metadata ![[X2_EXPR:.*]])
; CHECK: call void @llvm.dbg.value(metadata i8* %[[USP]], metadata ![[X2:.*]], metadata !DIExpression(DW_OP_deref, DW_OP_constu, 8, DW_OP_minus))
call void @llvm.dbg.value(metadata i32* %x2, metadata !12, metadata !15), !dbg !18
call void @capture(i32* nonnull %x2), !dbg !19
ret void, !dbg !20
@@ -84,8 +84,6 @@ attributes #4 = { nounwind }
!13 = !DILocation(line: 5, column: 3, scope: !6)
!14 = !DILocation(line: 6, column: 3, scope: !6)
; CHECK-DAG: ![[X1_EXPR]] = !DIExpression(DW_OP_deref, DW_OP_constu, 4, DW_OP_minus)
; CHECK-DAG: ![[X2_EXPR]] = !DIExpression(DW_OP_deref, DW_OP_constu, 8, DW_OP_minus)
!15 = !DIExpression(DW_OP_deref)
!16 = !DILocation(line: 5, column: 7, scope: !6)
!17 = !DILocation(line: 8, column: 3, scope: !6)