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| author | Adrian Prantl <aprantl@apple.com> | 2016-02-29 19:49:46 +0000 |
|---|---|---|
| committer | Adrian Prantl <aprantl@apple.com> | 2016-02-29 19:49:46 +0000 |
| commit | fb2add2be1e00cd003c6c08d41285ca92fba5274 (patch) | |
| tree | 491960ee25ef58a70188cdbad0f1a1d129876753 /llvm/test/DebugInfo/X86/parameters.ll | |
| parent | bbd16815b02ca6345598b523c1b07fa814c73dd2 (diff) | |
| download | bcm5719-llvm-fb2add2be1e00cd003c6c08d41285ca92fba5274.tar.gz bcm5719-llvm-fb2add2be1e00cd003c6c08d41285ca92fba5274.zip | |
Fix PR26585 by improving the promotion of DBG_VALUEs to DW_AT_locations.
When a variable is described by a single DBG_VALUE instruction we can
often use a more efficient inline DW_AT_location instead of using a
location list.
This commit makes the heuristic that decides when to apply this
optimization stricter by also verifying that the DBG_VALUE is live at the
entry of the function (instead of just checking that it is valid until
the end of the function).
<rdar://problem/24611008>
llvm-svn: 262247
Diffstat (limited to 'llvm/test/DebugInfo/X86/parameters.ll')
| -rw-r--r-- | llvm/test/DebugInfo/X86/parameters.ll | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/llvm/test/DebugInfo/X86/parameters.ll b/llvm/test/DebugInfo/X86/parameters.ll index 1d71efc0719..749d8ea8be1 100644 --- a/llvm/test/DebugInfo/X86/parameters.ll +++ b/llvm/test/DebugInfo/X86/parameters.ll @@ -25,15 +25,19 @@ ; CHECK: debug_info contents ; 0x74 is DW_OP_breg4, showing that the parameter is accessed indirectly ; (with a zero offset) from the register parameter -; CHECK: DW_AT_location{{.*}}(<0x0{{.}}> 74 00 +; CHECK: DW_AT_location [DW_FORM_data4] ([[F_LOC:0x[0-9]*]]) ; CHECK-NOT: DW_TAG ; CHECK: DW_AT_name{{.*}} = "f" - +; ; CHECK: DW_AT_location{{.*}}([[G_LOC:0x[0-9]*]]) ; CHECK-NOT: DW_TAG ; CHECK: DW_AT_name{{.*}} = "g" +; ; CHECK: debug_loc contents -; CHECK-NEXT: [[G_LOC]]: Beginning +; CHECK: [[F_LOC]]: Beginning +; CHECK-NEXT: Ending +; CHECK-NEXT: Location description: 74 00 +; CHECK: [[G_LOC]]: Beginning ; CHECK-NEXT: Ending ; CHECK-NEXT: Location description: 74 00 |
