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llvm-mirror/test/CodeGen/Hexagon/early-if-debug.mir
Matthias Braun 08fbde827c MachineOperand/MIParser: Do not print debug-use flag, infer it
The debug-use flag must be set exactly for uses on DBG_VALUEs.  This is
so obvious that it can be trivially inferred while parsing. This will
reduce noise when printing while omitting an information that has little
value to the user.

The parser will keep recognizing the flag for compatibility with old
`.mir` files.

Differential Revision: https://reviews.llvm.org/D53903

llvm-svn: 345671
2018-10-30 23:28:27 +00:00

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1.2 KiB
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# RUN: llc -march=hexagon -eif-limit=4 -run-pass hexagon-early-if -o - %s | FileCheck %s
# Check that even with the limit of 4 instructions, the block bb.1 is
# if-converted.
# CHECK-LABEL: bb.0:
# CHECK: %0:intregs = COPY $r0
# CHECK: %1:predregs = C2_cmpeqi %0, 0
# CHECK: %2:intregs = A2_tfrsi 123
# CHECK: DBG_VALUE %0, $noreg
# CHECK: DBG_VALUE %0, $noreg
# CHECK: DBG_VALUE %0, $noreg
# CHECK: DBG_VALUE %0, $noreg
# CHECK: DBG_VALUE %0, $noreg
# CHECK: %3:intregs = A2_tfrsi 321
# CHECK: %5:intregs = C2_mux %1, %2, %3
--- |
define void @foo() {
ret void
}
!1 = !DIExpression()
...
---
name: foo
tracksRegLiveness: true
registers:
- { id: 0, class: intregs }
- { id: 1, class: predregs }
- { id: 2, class: intregs }
- { id: 3, class: intregs }
- { id: 4, class: intregs }
body: |
bb.0:
liveins: $r0
%0 = COPY $r0
%1 = C2_cmpeqi %0, 0
%2 = A2_tfrsi 123
J2_jumpt %1, %bb.2, implicit-def dead $pc
J2_jump %bb.1, implicit-def dead $pc
bb.1:
DBG_VALUE %0, $noreg, !1, !1
DBG_VALUE %0, $noreg, !1, !1
DBG_VALUE %0, $noreg, !1, !1
DBG_VALUE %0, $noreg, !1, !1
DBG_VALUE %0, $noreg, !1, !1
%3 = A2_tfrsi 321
bb.2:
%4 = PHI %2, %bb.0, %3, %bb.1
...