diff options
Diffstat (limited to 'llvm/test/Transforms/LoopStrengthReduce/ephemeral.ll')
-rw-r--r-- | llvm/test/Transforms/LoopStrengthReduce/ephemeral.ll | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/llvm/test/Transforms/LoopStrengthReduce/ephemeral.ll b/llvm/test/Transforms/LoopStrengthReduce/ephemeral.ll deleted file mode 100644 index a0d1d44b1ba..00000000000 --- a/llvm/test/Transforms/LoopStrengthReduce/ephemeral.ll +++ /dev/null @@ -1,41 +0,0 @@ -; RUN: opt < %s -loop-reduce -S | FileCheck %s - -target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" - -; for (int i = 0; i < n; ++i) { -; use(i * 5 + 3); -; // i * a + b is ephemeral and shouldn't be promoted by LSR -; __builtin_assume(i * a + b >= 0); -; } -define void @ephemeral(i32 %a, i32 %b, i32 %n) { -; CHECK-LABEL: @ephemeral( -entry: - br label %loop - -loop: - %i = phi i32 [ 0, %entry ], [ %inc, %loop ] - ; Only i and i * 5 + 3 should be indvars, not i * a + b. -; CHECK: phi i32 -; CHECK: phi i32 -; CHECK-NOT: phi i32 - %inc = add nsw i32 %i, 1 - %exitcond = icmp eq i32 %inc, %n - - %0 = mul nsw i32 %i, 5 - %1 = add nsw i32 %0, 3 - call void @use(i32 %1) - - %2 = mul nsw i32 %i, %a - %3 = add nsw i32 %2, %b - %4 = icmp sgt i32 %3, -1 - call void @llvm.assume(i1 %4) - - br i1 %exitcond, label %exit, label %loop - -exit: - ret void -} - -declare void @use(i32) - -declare void @llvm.assume(i1) |