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Add crc32 instruction and intrinsics. Add a new class of prefix

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bytes for F2 0F 38 and propagate. Add a FIXME for a set
of possibilities which correspond to intrinsics already used.

New test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78508 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2009-08-08 21:55:08 +00:00
parent 46151de6a0
commit b4dc13cab7
6 changed files with 131 additions and 0 deletions
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test/CodeGen/X86/sse42.ll
+38
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@@ -0,0 +1,38 @@
; RUN: llvm-as < %s | llc -mtriple=i686-apple-darwin9 -mattr=sse42 | FileCheck %s -check-prefix=X32
; RUN: llvm-as < %s | llc -mtriple=x86_64-apple-darwin9 -mattr=sse42 | FileCheck %s -check-prefix=X64
declare i32 @llvm.x86.sse42.crc32.8(i32, i8) nounwind
declare i32 @llvm.x86.sse42.crc32.16(i32, i16) nounwind
declare i32 @llvm.x86.sse42.crc32.32(i32, i32) nounwind
define i32 @crc32_8(i32 %a, i8 %b) nounwind {
%tmp = call i32 @llvm.x86.sse42.crc32.8(i32 %a, i8 %b)
ret i32 %tmp
; X32: _crc32_8:
; X32: crc32 8(%esp), %eax
; X64: _crc32_8:
; X64: crc32 %sil, %eax
}
define i32 @crc32_16(i32 %a, i16 %b) nounwind {
%tmp = call i32 @llvm.x86.sse42.crc32.16(i32 %a, i16 %b)
ret i32 %tmp
; X32: _crc32_16:
; X32: crc32 8(%esp), %eax
; X64: _crc32_16:
; X64: crc32 %si, %eax
}
define i32 @crc32_32(i32 %a, i32 %b) nounwind {
%tmp = call i32 @llvm.x86.sse42.crc32.32(i32 %a, i32 %b)
ret i32 %tmp
; X32: _crc32_32:
; X32: crc32 8(%esp), %eax
; X64: _crc32_32:
; X64: crc32 %esi, %eax
}