diff options
| author | Akira Hatanaka <ahatanaka@mips.com> | 2013-03-01 00:50:52 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2013-03-01 00:50:52 +0000 |
| commit | e760675b0ed8d7adcc2c991a2d645d2b538a5ab3 (patch) | |
| tree | 9d211c7597577fb69b37a9a3260081575bcdf6d5 /test/CodeGen/Mips | |
| parent | 1f7330b16239f50daee57dbf53b20fbacd028ee4 (diff) | |
[mips] Add capability to search in the forward direction for instructions that
can fill the delay slot.
Currently, this is off by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176320 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Mips')
| -rw-r--r-- | test/CodeGen/Mips/brdelayslot.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/brdelayslot.ll b/test/CodeGen/Mips/brdelayslot.ll index 1e66ecf14d..5e51abe8fe 100644 --- a/test/CodeGen/Mips/brdelayslot.ll +++ b/test/CodeGen/Mips/brdelayslot.ll @@ -2,6 +2,8 @@ ; RUN: llc -march=mipsel < %s | FileCheck %s -check-prefix=Default ; RUN: llc -march=mipsel -O1 -relocation-model=static < %s | \ ; RUN: FileCheck %s -check-prefix=STATICO1 +; RUN: llc -march=mipsel -disable-mips-df-forward-search=false \ +; RUN: -relocation-model=static < %s | FileCheck %s -check-prefix=FORWARD define void @foo1() nounwind { entry: @@ -99,3 +101,23 @@ entry: %add = add nsw i32 %1, %a ret i32 %add } + +; Test searchForward. Check that the second jal's slot is filled with another +; instruction in the same block. +; +; FORWARD: foo10: +; FORWARD: jal foo11 +; FORWARD: jal foo11 +; FORWARD-NOT: nop + +define void @foo10() nounwind { +entry: + tail call void @foo11() nounwind + tail call void @foo11() nounwind + store i32 0, i32* @g1, align 4 + tail call void @foo11() nounwind + store i32 0, i32* @g1, align 4 + ret void +} + +declare void @foo11() |