define i64 @test_subreg_spill_fold3() { ret i64 0 }
define i64 @test_subreg_fill_fold() { ret i64 0 }
define double @test_subreg_fill_fold2() { ret double 0.0 }
+ define i64 @test_nzcv_spill_fold() { ret i64 0 }
...
---
# CHECK-LABEL: name: test_subreg_spill_fold
$d0 = COPY %1
RET_ReallyLR implicit $d0
...
+---
+# CHECK-LABEL: name: test_nzcv_spill_fold
+# Ensure that nzcv COPY cannot be folded.
+name: test_nzcv_spill_fold
+registers:
+ - { id: 0, class: gpr64 }
+body: |
+ bb.0:
+ ; CHECK: %1:gpr64 = COPY $nzcv
+ ; CHECK: STRXui %1, %stack.0, 0 :: (store (s64) into %stack.0)
+ %0 = COPY $nzcv
+ INLINEASM &nop, 1, 12, implicit-def dead $x0, 12, implicit-def dead $x1, 12, implicit-def dead $x2, 12, implicit-def dead $x3, 12, implicit-def dead $x4, 12, implicit-def dead $x5, 12, implicit-def dead $x6, 12, implicit-def dead $x7, 12, implicit-def dead $x8, 12, implicit-def dead $x9, 12, implicit-def dead $x10, 12, implicit-def dead $x11, 12, implicit-def dead $x12, 12, implicit-def dead $x13, 12, implicit-def dead $x14, 12, implicit-def dead $x15, 12, implicit-def dead $x16, 12, implicit-def dead $x17, 12, implicit-def dead $x18, 12, implicit-def dead $x19, 12, implicit-def dead $x20, 12, implicit-def dead $x21, 12, implicit-def dead $x22, 12, implicit-def dead $x23, 12, implicit-def dead $x24, 12, implicit-def dead $x25, 12, implicit-def dead $x26, 12, implicit-def dead $x27, 12, implicit-def dead $x28, 12, implicit-def dead $fp, 12, implicit-def dead $lr, 12, implicit-def $sp
+ $x0 = COPY %0
+ RET_ReallyLR implicit $x0
+...