diff options
Diffstat (limited to 'test/DebugInfo/AArch64/eh_frame_personality.ll')
-rw-r--r-- | test/DebugInfo/AArch64/eh_frame_personality.ll | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/test/DebugInfo/AArch64/eh_frame_personality.ll b/test/DebugInfo/AArch64/eh_frame_personality.ll new file mode 100644 index 0000000000000..d35f2a2fcafbb --- /dev/null +++ b/test/DebugInfo/AArch64/eh_frame_personality.ll @@ -0,0 +1,46 @@ +; RUN: llc -verify-machineinstrs -mtriple=aarch64-none-linux-gnu %s -filetype=obj -o %t +; RUN: llvm-objdump -s %t | FileCheck %s + +declare i32 @__gxx_personality_v0(...) + +declare void @bar() + +define i64 @foo(i64 %lhs, i64 %rhs) { + invoke void @bar() to label %end unwind label %clean +end: + ret i64 0 + +clean: + %tst = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) cleanup + ret i64 42 +} + +; CHECK: Contents of section .eh_frame: +; CHECK: 0000 1c000000 00000000 017a504c 5200017c .........zPLR..| +; CHECK: 0010 1e0b0000 00000000 00000000 1b0c1f00 ................ + +; Don't really care about the rest: + +; 0020 1c000000 24000000 00000000 24000000 ....$.......$... +; 0030 08000000 00000000 00440c1f 10449e02 .........D...D.. + +; The key test here is that the personality routine is sanely encoded (under the +; small memory model it must be an 8-byte value for full generality: code+data < +; 4GB, but you might need both +4GB and -4GB depending on where things end +; up. However, for completeness: + +; First CIE: +; ---------- +; 1c000000: Length = 0x1c +; 00000000: This is a CIE +; 01: Version 1 +; 7a 50 4c 52 00: Augmentation string "zPLR" (personality routine, language-specific data, pointer format) +; 01: Code alignment factor 1 +; 78: Data alignment factor: -8 +; 1e: Return address in x30 +; 07: Augmentation data 0xb bytes (this is key!) +; 00: Personality encoding is DW_EH_PE_absptr +; 00 00 00 00 00 00 00 00: First part of aug (personality routine). Relocated, obviously +; 00: Second part of aug (language-specific data): absolute pointer format used +; 1b: pointer format: pc-relative signed 4-byte. Just like GNU. +; 0c 1f 00: Initial instructions ("DW_CFA_def_cfa x31 ofs 0" in this case) |