diff options
| author | Eli Friedman <efriedma@codeaurora.org> | 2017-04-07 22:01:23 +0000 |
|---|---|---|
| committer | Eli Friedman <efriedma@codeaurora.org> | 2017-04-07 22:01:23 +0000 |
| commit | 251a136db40c5dcc80bd9dafec1c1d75d6be72b0 (patch) | |
| tree | 0640d677f37585043592951e0e2f36e62ab795ab /test/CodeGen/ARM/softfp-fabs-fneg.ll | |
| parent | 80726a4dd80539f2aa4521012e60e7048db125d1 (diff) | |
[ARM] Prefer BIC over BFC in ARM mode.
BIC is generally faster, and it can put the output in a different
register from the input.
We already do this in Thumb2 mode; not sure why the equivalent fix
never got applied to ARM mode.
Differential Revision: https://reviews.llvm.org/D31797
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299803 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM/softfp-fabs-fneg.ll')
| -rw-r--r-- | test/CodeGen/ARM/softfp-fabs-fneg.ll | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/test/CodeGen/ARM/softfp-fabs-fneg.ll b/test/CodeGen/ARM/softfp-fabs-fneg.ll index b608fb84021..b7c684d35b5 100644 --- a/test/CodeGen/ARM/softfp-fabs-fneg.ll +++ b/test/CodeGen/ARM/softfp-fabs-fneg.ll @@ -14,8 +14,7 @@ define double @f(double %a) { define float @g(float %a) { ; CHECK-LABEL: g: - ; CHECK-THUMB: bic r0, r0, #-2147483648 - ; CHECK-ARM: bfc r0, #31, #1 + ; CHECK: bic r0, r0, #-2147483648 ; CHECK-NEXT: bx lr %x = call float @llvm.fabs.f32(float %a) readnone ret float %x |