llvm-6502/test/Transforms/SLPVectorizer/X86/pr18060.ll
Nadav Rotem 7e8ff837e6 PR1860 - We can't save a list of ExtractElement instructions to CSE because some of these instructions
may be removed and optimized in future iterations. Instead we save a list of basic blocks that we need to CSE.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195791 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-26 22:24:25 +00:00

48 lines
1.6 KiB
LLVM

; RUN: opt < %s -slp-vectorizer -S -mtriple=i386-pc-linux
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
target triple = "i386-pc-linux"
; Function Attrs: nounwind
define i32 @_Z16adjustFixupValueyj(i64 %Value, i32 %Kind) {
entry:
%extract.t = trunc i64 %Value to i32
%extract = lshr i64 %Value, 12
%extract.t6 = trunc i64 %extract to i32
switch i32 %Kind, label %sw.default [
i32 0, label %return
i32 1, label %return
i32 129, label %sw.bb1
i32 130, label %sw.bb2
]
sw.default: ; preds = %entry
call void @_Z25llvm_unreachable_internalv()
unreachable
sw.bb1: ; preds = %entry
%shr = lshr i64 %Value, 16
%extract.t5 = trunc i64 %shr to i32
%extract7 = lshr i64 %Value, 28
%extract.t8 = trunc i64 %extract7 to i32
br label %sw.bb2
sw.bb2: ; preds = %sw.bb1, %entry
%Value.addr.0.off0 = phi i32 [ %extract.t, %entry ], [ %extract.t5, %sw.bb1 ]
%Value.addr.0.off12 = phi i32 [ %extract.t6, %entry ], [ %extract.t8, %sw.bb1 ]
%conv6 = and i32 %Value.addr.0.off0, 4095
%conv4 = shl i32 %Value.addr.0.off12, 16
%shl = and i32 %conv4, 983040
%or = or i32 %shl, %conv6
%or11 = or i32 %or, 8388608
br label %return
return: ; preds = %sw.bb2, %entry, %entry
%retval.0 = phi i32 [ %or11, %sw.bb2 ], [ %extract.t, %entry ], [ %extract.t, %entry ]
ret i32 %retval.0
}
; Function Attrs: noreturn
declare void @_Z25llvm_unreachable_internalv()