diff options
| author | Chris Lattner <sabre@nondot.org> | 2010-08-31 18:05:08 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-08-31 18:05:08 +0000 |
| commit | f88776c363de2ef11bebbd23bc620e7320fd5c76 (patch) | |
| tree | 6bc77c4022abc05541cb4d6a5a5cdca513f97ead /test/Transforms/TailCallElim | |
| parent | 421cc4c9998e5ae1ebd643dfbd25771fe8462ec4 (diff) | |
| download | external_llvm-f88776c363de2ef11bebbd23bc620e7320fd5c76.zip external_llvm-f88776c363de2ef11bebbd23bc620e7320fd5c76.tar.gz external_llvm-f88776c363de2ef11bebbd23bc620e7320fd5c76.tar.bz2 | |
merge two tests and convert to filecheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112613 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/TailCallElim')
| -rw-r--r-- | test/Transforms/TailCallElim/accum_recursion.ll | 31 | ||||
| -rw-r--r-- | test/Transforms/TailCallElim/accum_recursion_constant_arg.ll | 20 |
2 files changed, 28 insertions, 23 deletions
diff --git a/test/Transforms/TailCallElim/accum_recursion.ll b/test/Transforms/TailCallElim/accum_recursion.ll index b2a9ed2..66928a3 100644 --- a/test/Transforms/TailCallElim/accum_recursion.ll +++ b/test/Transforms/TailCallElim/accum_recursion.ll @@ -1,15 +1,40 @@ -; RUN: opt < %s -tailcallelim -S | not grep call +; RUN: opt < %s -tailcallelim -S | FileCheck %s -define i32 @factorial(i32 %x) { +define i32 @test1_factorial(i32 %x) { entry: %tmp.1 = icmp sgt i32 %x, 0 ; <i1> [#uses=1] br i1 %tmp.1, label %then, label %else then: ; preds = %entry %tmp.6 = add i32 %x, -1 ; <i32> [#uses=1] - %tmp.4 = call i32 @factorial( i32 %tmp.6 ) ; <i32> [#uses=1] + %tmp.4 = call i32 @test1_factorial( i32 %tmp.6 ) ; <i32> [#uses=1] %tmp.7 = mul i32 %tmp.4, %x ; <i32> [#uses=1] ret i32 %tmp.7 else: ; preds = %entry ret i32 1 } +; CHECK: define i32 @test1_factorial +; CHECK: phi i32 +; CHECK-NOT: call i32 +; CHECK: else: + +; This is a more aggressive form of accumulator recursion insertion, which +; requires noticing that X doesn't change as we perform the tailcall. + +define i32 @test2_mul(i32 %x, i32 %y) { +entry: + %tmp.1 = icmp eq i32 %y, 0 ; <i1> [#uses=1] + br i1 %tmp.1, label %return, label %endif +endif: ; preds = %entry + %tmp.8 = add i32 %y, -1 ; <i32> [#uses=1] + %tmp.5 = call i32 @test2_mul( i32 %x, i32 %tmp.8 ) ; <i32> [#uses=1] + %tmp.9 = add i32 %tmp.5, %x ; <i32> [#uses=1] + ret i32 %tmp.9 +return: ; preds = %entry + ret i32 %x +} + +; CHECK: define i32 @test2_mul +; CHECK: phi i32 +; CHECK-NOT: call i32 +; CHECK: return:
\ No newline at end of file diff --git a/test/Transforms/TailCallElim/accum_recursion_constant_arg.ll b/test/Transforms/TailCallElim/accum_recursion_constant_arg.ll deleted file mode 100644 index 2a90cf3..0000000 --- a/test/Transforms/TailCallElim/accum_recursion_constant_arg.ll +++ /dev/null @@ -1,20 +0,0 @@ -; This is a more aggressive form of accumulator recursion insertion, which -; requires noticing that X doesn't change as we perform the tailcall. Thanks -; go out to the anonymous users of the demo script for "suggesting" -; optimizations that should be done. :) - -; RUN: opt < %s -tailcallelim -S | not grep call - -define i32 @mul(i32 %x, i32 %y) { -entry: - %tmp.1 = icmp eq i32 %y, 0 ; <i1> [#uses=1] - br i1 %tmp.1, label %return, label %endif -endif: ; preds = %entry - %tmp.8 = add i32 %y, -1 ; <i32> [#uses=1] - %tmp.5 = call i32 @mul( i32 %x, i32 %tmp.8 ) ; <i32> [#uses=1] - %tmp.9 = add i32 %tmp.5, %x ; <i32> [#uses=1] - ret i32 %tmp.9 -return: ; preds = %entry - ret i32 %x -} - |