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Diffstat (limited to 'test/CodeGen/X86/i128-mul.ll')
| -rw-r--r-- | test/CodeGen/X86/i128-mul.ll | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/test/CodeGen/X86/i128-mul.ll b/test/CodeGen/X86/i128-mul.ll deleted file mode 100644 index 21bca028888a..000000000000 --- a/test/CodeGen/X86/i128-mul.ll +++ /dev/null @@ -1,46 +0,0 @@ -; RUN: llc < %s -march=x86-64 -mcpu=corei7 | FileCheck %s -; PR1198 - -define i64 @foo(i64 %x, i64 %y) { - %tmp0 = zext i64 %x to i128 - %tmp1 = zext i64 %y to i128 - %tmp2 = mul i128 %tmp0, %tmp1 - %tmp7 = zext i32 64 to i128 - %tmp3 = lshr i128 %tmp2, %tmp7 - %tmp4 = trunc i128 %tmp3 to i64 - ret i64 %tmp4 -} - -; <rdar://problem/14096009> superfluous multiply by high part of -; zero-extended value. -; CHECK: @mul1 -; CHECK-NOT: imulq -; CHECK: mulq -; CHECK-NOT: imulq -define i64 @mul1(i64 %n, i64* nocapture %z, i64* nocapture %x, i64 %y) { -entry: - %conv = zext i64 %y to i128 - %cmp11 = icmp eq i64 %n, 0 - br i1 %cmp11, label %for.end, label %for.body - -for.body: ; preds = %entry, %for.body - %carry.013 = phi i64 [ %conv6, %for.body ], [ 0, %entry ] - %i.012 = phi i64 [ %inc, %for.body ], [ 0, %entry ] - %arrayidx = getelementptr inbounds i64, i64* %x, i64 %i.012 - %0 = load i64, i64* %arrayidx, align 8 - %conv2 = zext i64 %0 to i128 - %mul = mul i128 %conv2, %conv - %conv3 = zext i64 %carry.013 to i128 - %add = add i128 %mul, %conv3 - %conv4 = trunc i128 %add to i64 - %arrayidx5 = getelementptr inbounds i64, i64* %z, i64 %i.012 - store i64 %conv4, i64* %arrayidx5, align 8 - %shr = lshr i128 %add, 64 - %conv6 = trunc i128 %shr to i64 - %inc = add i64 %i.012, 1 - %exitcond = icmp eq i64 %inc, %n - br i1 %exitcond, label %for.end, label %for.body - -for.end: ; preds = %for.body, %entry - ret i64 0 -} |
