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| author | Bill Wendling <isanbard@gmail.com> | 2007-03-28 19:07:34 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2007-03-28 19:07:34 +0000 |
| commit | 03179060eef0fb92305cb98aae0d584ef6ab304d (patch) | |
| tree | e95f19fa68ba254c1574bea4c44edb5956410d76 /lib/Target/X86/README-SSE.txt | |
| parent | f6e9353e1a922643b88dfea6763b0453727aa5c2 (diff) | |
| download | external_llvm-03179060eef0fb92305cb98aae0d584ef6ab304d.zip external_llvm-03179060eef0fb92305cb98aae0d584ef6ab304d.tar.gz external_llvm-03179060eef0fb92305cb98aae0d584ef6ab304d.tar.bz2 | |
Made this into a bug report: PR1286
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35439 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/README-SSE.txt')
| -rw-r--r-- | lib/Target/X86/README-SSE.txt | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/lib/Target/X86/README-SSE.txt b/lib/Target/X86/README-SSE.txt index 96e6aab..08dcc27 100644 --- a/lib/Target/X86/README-SSE.txt +++ b/lib/Target/X86/README-SSE.txt @@ -572,43 +572,3 @@ swizzle: ret //===---------------------------------------------------------------------===// - -We should compile this: - -#include <xmmintrin.h> - -void foo(__m128i *A, __m128i *B) { - *A = _mm_sll_epi16 (*A, *B); -} - -to: - -_foo: - subl $12, %esp - movl 16(%esp), %edx - movl 20(%esp), %eax - movdqa (%edx), %xmm1 - movdqa (%eax), %xmm0 - psllw %xmm0, %xmm1 - movdqa %xmm1, (%edx) - addl $12, %esp - ret - -not: - -_foo: - movl 8(%esp), %eax - movdqa (%eax), %xmm0 - #IMPLICIT_DEF %eax - pinsrw $2, %eax, %xmm0 - xorl %ecx, %ecx - pinsrw $3, %ecx, %xmm0 - pinsrw $4, %eax, %xmm0 - pinsrw $5, %ecx, %xmm0 - pinsrw $6, %eax, %xmm0 - pinsrw $7, %ecx, %xmm0 - movl 4(%esp), %eax - movdqa (%eax), %xmm1 - psllw %xmm0, %xmm1 - movdqa %xmm1, (%eax) - ret |