[llvm] 20a1d03 - [ARM] peephole-bitcast test change. NFC.

[Sjoerd Meijer via llvm-commits]

Author: Sjoerd Meijer
Date: 2020-02-06T14:36:48Z
New Revision: 20a1d03d778dedaa91cbf8ff63d4be92c2291ca0

URL: https://github.com/llvm/llvm-project/commit/20a1d03d778dedaa91cbf8ff63d4be92c2291ca0
DIFF: https://github.com/llvm/llvm-project/commit/20a1d03d778dedaa91cbf8ff63d4be92c2291ca0.diff

LOG: [ARM] peephole-bitcast test change. NFC.

This test case was XFAIL'ed because the peepholer was missing an optimisation.
But the peepholer is now able to handle this case, so enable this test. I will
close the corresponding and very old PR11364.

Added: 
    

Modified: 
    llvm/test/CodeGen/ARM/peephole-bitcast.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/ARM/peephole-bitcast.ll b/llvm/test/CodeGen/ARM/peephole-bitcast.ll
index 6414cf694d2e..dff6b4be5c16 100644
--- a/llvm/test/CodeGen/ARM/peephole-bitcast.ll
+++ b/llvm/test/CodeGen/ARM/peephole-bitcast.ll
@@ -1,18 +1,20 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mtriple=arm-- -mcpu=cortex-a8 | FileCheck %s
-; XFAIL: *
-; PR11364
 
-; vmov s0, r0 + vmov r0, s0 should have been optimized away.
-; rdar://9104514
-
-; Peephole leaves a dead vmovsr instruction behind, and depends on linear scan
-; to remove it.
+; Check that the peepholer removes dead instructions:
+;
+;   vmov s0, r0
+;   vmov r0, s0
 
 define void @t(float %x) nounwind ssp {
+; CHECK-LABEL: t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    movw r1, #65534
+; CHECK-NEXT:    movt r1, #32639
+; CHECK-NEXT:    cmp r0, r1
+; CHECK-NEXT:    bxhi lr
+; CHECK-NEXT:    b doSomething
 entry:
-; CHECK-LABEL:     t:
-; CHECK-NOT: vmov
-; CHECK:     bl
   %0 = bitcast float %x to i32
   %cmp = icmp ult i32 %0, 2139095039
   br i1 %cmp, label %if.then, label %if.end