[llvm] 4096ef3 - [Hexagon] Consider direction hint forming dealloc_return duplex

[Krzysztof Parzyszek via llvm-commits]

Author: colinl
Date: 2022-01-07T12:04:00-08:00
New Revision: 4096ef3ed70ddfc3941b43097cebd2aadc6919f5

URL: https://github.com/llvm/llvm-project/commit/4096ef3ed70ddfc3941b43097cebd2aadc6919f5
DIFF: https://github.com/llvm/llvm-project/commit/4096ef3ed70ddfc3941b43097cebd2aadc6919f5.diff

LOG: [Hexagon] Consider direction hint forming dealloc_return duplex

Added: 
    llvm/test/MC/Hexagon/bug24609.s

Modified: 
    llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCDuplexInfo.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCDuplexInfo.cpp b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCDuplexInfo.cpp
index ae1abc4678516..05410893e31e0 100644
--- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCDuplexInfo.cpp
+++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCDuplexInfo.cpp
@@ -303,8 +303,6 @@ unsigned HexagonMCInstrInfo::getDuplexCandidateGroup(MCInst const &MCI) {
   case Hexagon::L4_return_f:
   case Hexagon::L4_return_tnew_pnt:
   case Hexagon::L4_return_fnew_pnt:
-  case Hexagon::L4_return_tnew_pt:
-  case Hexagon::L4_return_fnew_pt:
     // [if ([!]p0[.new])] dealloc_return
     SrcReg = MCI.getOperand(1).getReg();
     if (Hexagon::P0 == SrcReg) {

diff  --git a/llvm/test/MC/Hexagon/bug24609.s b/llvm/test/MC/Hexagon/bug24609.s
new file mode 100644
index 0000000000000..90cf05391dd3f
--- /dev/null
+++ b/llvm/test/MC/Hexagon/bug24609.s
@@ -0,0 +1,6 @@
+# RUN: llvm-mc -arch=hexagon -filetype=obj %s | llvm-objdump -d - | FileCheck %s
+
+{ p0 = cmp.eq(r0,#0) ; if (p0.new) dealloc_return:t }
+
+# CHECK: { p0 = cmp.eq(r0,#0)
+# CHECK: if (p0.new) dealloc_return:t }