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Diffstat (limited to 'llvm/test/Transforms/InstCombine/pr21210.ll')
-rw-r--r-- | llvm/test/Transforms/InstCombine/pr21210.ll | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/llvm/test/Transforms/InstCombine/pr21210.ll b/llvm/test/Transforms/InstCombine/pr21210.ll deleted file mode 100644 index ac229a89ca5..00000000000 --- a/llvm/test/Transforms/InstCombine/pr21210.ll +++ /dev/null @@ -1,51 +0,0 @@ -; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -instcombine -S | FileCheck %s -; Checks that the select-icmp optimization is safe in two cases -declare void @foo(i32) -declare i32 @bar(i32) - -; don't replace 'cond' by 'len' in the home block ('bb') that -; contains the select -define void @test1(i32 %len) { -entry: - br label %bb - -bb: - %cmp = icmp ult i32 %len, 8 - %cond = select i1 %cmp, i32 %len, i32 8 - call void @foo(i32 %cond) - %cmp11 = icmp eq i32 %cond, 8 - br i1 %cmp11, label %for.end, label %bb - -for.end: - ret void -; CHECK: select -; CHECK: icmp eq i32 %cond, 8 -} - -; don't replace 'cond' by 'len' in a block ('b1') that dominates all uses -; of the select outside the home block ('bb'), but can be reached from the home -; block on another path ('bb -> b0 -> b1') -define void @test2(i32 %len) { -entry: - %0 = call i32 @bar(i32 %len); - %cmp = icmp ult i32 %len, 4 - br i1 %cmp, label %bb, label %b1 -bb: - %cmp2 = icmp ult i32 %0, 2 - %cond = select i1 %cmp2, i32 %len, i32 8 - %cmp3 = icmp eq i32 %cond, 8 - br i1 %cmp3, label %b0, label %b1 - -b0: - call void @foo(i32 %len) - br label %b1 - -b1: -; CHECK: phi i32 [ %cond, %bb ], [ undef, %b0 ], [ %0, %entry ] - %1 = phi i32 [ %cond, %bb ], [ undef, %b0 ], [ %0, %entry ] - br label %ret - -ret: - call void @foo(i32 %1) - ret void -} |