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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-22 22:33:08 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-22 22:33:08 +0000 |
| commit | 28cf1156c93afabedc69fe7b73aa92ce85e323a5 (patch) | |
| tree | 77c5119c99f622fd522dbc8e1e59f1057463c3d1 /test/CodeGen | |
| parent | 27c6baeca23be295d13da6a010d203b280058444 (diff) | |
| download | external_llvm-28cf1156c93afabedc69fe7b73aa92ce85e323a5.zip external_llvm-28cf1156c93afabedc69fe7b73aa92ce85e323a5.tar.gz external_llvm-28cf1156c93afabedc69fe7b73aa92ce85e323a5.tar.bz2 | |
Reapply r128045 and r128051 with fixes.
This will extend the ranges of debug info variables in registers until they are
clobbered.
Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.
Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128114 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/dbg-value-range.ll | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/test/CodeGen/X86/dbg-value-range.ll b/test/CodeGen/X86/dbg-value-range.ll index 2985224..665cedc 100644 --- a/test/CodeGen/X86/dbg-value-range.ll +++ b/test/CodeGen/X86/dbg-value-range.ll @@ -41,15 +41,17 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone !18 = metadata !{i32 7, i32 2, metadata !12, null} !19 = metadata !{i32 8, i32 2, metadata !12, null} -; check that variable bar:b value range is appropriately trucated in debug info. Here Ltmp5 is end of -; location range. +; Check that variable bar:b value range is appropriately trucated in debug info. +; The variable is in %rdi which is clobbered by 'movl %ebx, %edi' +; Here Ltmp7 is the end of the location range. ;CHECK:Ltmp6 -;CHECK-NEXT: DEBUG_VALUE: bar:b <- undef +;CHECK-NEXT: movl +;CHECK-NEXT: Ltmp7 ;CHECK:Ldebug_loc0: ;CHECK-NEXT: .quad Ltmp -;CHECK-NEXT: .quad Ltmp6 +;CHECK-NEXT: .quad Ltmp7 ;CHECK-NEXT: .short 1 ;CHECK-NEXT: .byte 85 ;CHECK-NEXT: .quad 0 |