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Diffstat (limited to 'test/CodeGen/X86/break-avx-dep.ll')
-rw-r--r-- | test/CodeGen/X86/break-avx-dep.ll | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/test/CodeGen/X86/break-avx-dep.ll b/test/CodeGen/X86/break-avx-dep.ll deleted file mode 100644 index 210bda1..0000000 --- a/test/CodeGen/X86/break-avx-dep.ll +++ /dev/null @@ -1,29 +0,0 @@ -; RUN: llc < %s -march=x86-64 -mattr=+avx | FileCheck %s -; -; rdar:15221834 False AVX register dependencies cause 5x slowdown on -; flops-6. Make sure the unused register read by vcvtsi2sdq is zeroed -; to avoid cyclic dependence on a write to the same register in a -; previous iteration. - -; CHECK-LABEL: t1: -; CHECK-LABEL: %loop -; CHECK: vxorps %[[REG:xmm.]], %{{xmm.}}, %{{xmm.}} -; CHECK: vcvtsi2sdq %{{r[0-9a-x]+}}, %[[REG]], %{{xmm.}} -define i64 @t1(i64* nocapture %x, double* nocapture %y) nounwind { -entry: - %vx = load i64* %x - br label %loop -loop: - %i = phi i64 [ 1, %entry ], [ %inc, %loop ] - %s1 = phi i64 [ %vx, %entry ], [ %s2, %loop ] - %fi = sitofp i64 %i to double - %vy = load double* %y - %fipy = fadd double %fi, %vy - %iipy = fptosi double %fipy to i64 - %s2 = add i64 %s1, %iipy - %inc = add nsw i64 %i, 1 - %exitcond = icmp eq i64 %inc, 156250000 - br i1 %exitcond, label %ret, label %loop -ret: - ret i64 %s2 -} |