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| author | Mon P Wang <wangmp@apple.com> | 2008-12-10 08:55:09 +0000 |
|---|---|---|
| committer | Mon P Wang <wangmp@apple.com> | 2008-12-10 08:55:09 +0000 |
| commit | 01f8d09dd327a8534dac1d373a7ba52af91dd378 (patch) | |
| tree | d717130e722b22f66a95ecfc9b54e035e1019e75 /docs | |
| parent | bae527d949949da0cf45d279990eee21e7c66108 (diff) | |
| download | llvm-01f8d09dd327a8534dac1d373a7ba52af91dd378.tar.gz llvm-01f8d09dd327a8534dac1d373a7ba52af91dd378.tar.bz2 llvm-01f8d09dd327a8534dac1d373a7ba52af91dd378.tar.xz | |
Added a little more information that vector shifts require vector shift amount.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60831 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/LangRef.html | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index 48b619a74b..384856043c 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -2584,7 +2584,9 @@ type. '<tt>op2</tt>' is treated as an unsigned value.</p> <p>The value produced is <tt>op1</tt> * 2<sup><tt>op2</tt></sup> mod 2<sup>n</sup>, where n is the width of the result. If <tt>op2</tt> is (statically or dynamically) negative or -equal to or larger than the number of bits in <tt>op1</tt>, the result is undefined.</p> +equal to or larger than the number of bits in <tt>op1</tt>, the result is undefined. +If the arguments are vectors, each vector element of <tt>op1</tt> is shifted by the +corresponding shift amount in <tt>op2</tt>.</p> <h5>Example:</h5><pre> <result> = shl i32 4, %var <i>; yields {i32}: 4 << %var</i> @@ -2616,7 +2618,9 @@ type. '<tt>op2</tt>' is treated as an unsigned value.</p> <p>This instruction always performs a logical shift right operation. The most significant bits of the result will be filled with zero bits after the shift. If <tt>op2</tt> is (statically or dynamically) equal to or larger than -the number of bits in <tt>op1</tt>, the result is undefined.</p> +the number of bits in <tt>op1</tt>, the result is undefined. If the arguments are +vectors, each vector element of <tt>op1</tt> is shifted by the corresponding shift +amount in <tt>op2</tt>.</p> <h5>Example:</h5> <pre> @@ -2651,8 +2655,9 @@ type. '<tt>op2</tt>' is treated as an unsigned value.</p> <p>This instruction always performs an arithmetic shift right operation, The most significant bits of the result will be filled with the sign bit of <tt>op1</tt>. If <tt>op2</tt> is (statically or dynamically) equal to or -larger than the number of bits in <tt>op1</tt>, the result is undefined. -</p> +larger than the number of bits in <tt>op1</tt>, the result is undefined. If the +arguments are vectors, each vector element of <tt>op1</tt> is shifted by the +corresponding shift amount in <tt>op2</tt>.</p> <h5>Example:</h5> <pre> |