diff options
| author | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2015-02-13 14:15:48 +0000 |
|---|---|---|
| committer | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2015-02-13 14:15:48 +0000 |
| commit | b14ae8692dcce69aab032af9476e36de15f6490d (patch) | |
| tree | d4d8da6c61c5f65ccbe63f60e6bb6a19c008a72b /llvm/test/CodeGen/PowerPC | |
| parent | f5f2ace2111ee6ec6781a497b7f0ec82a224db89 (diff) | |
| download | bcm5719-llvm-b14ae8692dcce69aab032af9476e36de15f6490d.tar.gz bcm5719-llvm-b14ae8692dcce69aab032af9476e36de15f6490d.zip | |
[CodeGenPrepare] Removed duplicate logic. SimplifyCFG already knows how to speculate calls to cttz/ctlz.
SimplifyCFG now knows how to speculate calls to intrinsic cttz/ctlz that are
'cheap' for the target. Therefore, some of the logic in CodeGenPrepare
that was originally added at revision 224899 can now be removed.
This patch is basically a no functional change. It removes the duplicated
logic in CodeGenPrepare and converts all the existing target specific tests
for cttz/ctlz into SimplifyCFG tests.
Differential Revision: http://reviews.llvm.org/D7608
llvm-svn: 229105
Diffstat (limited to 'llvm/test/CodeGen/PowerPC')
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/cttz-ctlz-spec.ll | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/llvm/test/CodeGen/PowerPC/cttz-ctlz-spec.ll b/llvm/test/CodeGen/PowerPC/cttz-ctlz-spec.ll deleted file mode 100644 index 13b017a746e..00000000000 --- a/llvm/test/CodeGen/PowerPC/cttz-ctlz-spec.ll +++ /dev/null @@ -1,41 +0,0 @@ -; RUN: opt -S -codegenprepare < %s | FileCheck %s -target datalayout = "E-m:e-i64:64-n32:64" -target triple = "powerpc64-unknown-linux-gnu" - -define i64 @test1(i64 %A) { -; CHECK-LABEL: @test1( -; CHECK: [[CTLZ:%[A-Za-z0-9]+]] = call i64 @llvm.ctlz.i64(i64 %A, i1 false) -; CHECK-NEXT: ret i64 [[CTLZ]] -entry: - %tobool = icmp eq i64 %A, 0 - br i1 %tobool, label %cond.end, label %cond.true - -cond.true: ; preds = %entry - %0 = tail call i64 @llvm.ctlz.i64(i64 %A, i1 true) - br label %cond.end - -cond.end: ; preds = %entry, %cond.true - %cond = phi i64 [ %0, %cond.true ], [ 64, %entry ] - ret i64 %cond -} - -define i64 @test1b(i64 %A) { -; CHECK-LABEL: @test1b( -; CHECK: [[CTTZ:%[A-Za-z0-9]+]] = call i64 @llvm.cttz.i64(i64 %A, i1 false) -; CHECK-NEXT: ret i64 [[CTTZ]] -entry: - %tobool = icmp eq i64 %A, 0 - br i1 %tobool, label %cond.end, label %cond.true - -cond.true: ; preds = %entry - %0 = tail call i64 @llvm.cttz.i64(i64 %A, i1 true) - br label %cond.end - -cond.end: ; preds = %entry, %cond.true - %cond = phi i64 [ %0, %cond.true ], [ 64, %entry ] - ret i64 %cond -} - -declare i64 @llvm.ctlz.i64(i64, i1) -declare i64 @llvm.cttz.i64(i64, i1) - |
