llvm-6502/test/CodeGen/X86/2011-10-21-widen-cmp.ll
Nadav Rotem 5b2bba6122 Fix pr11193.
SHL inserts zeros from the right, thus even when the original
sign_extend_inreg value was of 1-bit, we need to sra.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142724 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-22 12:39:25 +00:00

46 lines
1.4 KiB
LLVM

; RUN: llc < %s -march=x86-64 -mcpu=corei7 | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
; Check that a <4 x float> compare is generated and that we are
; not stuck in an endless loop.
; CHECK: cmp_2_floats
; CHECK: cmpordps
; CHECK: ret
define void @cmp_2_floats() {
entry:
%0 = fcmp oeq <2 x float> undef, undef
%1 = select <2 x i1> %0, <2 x float> undef, <2 x float> undef
store <2 x float> %1, <2 x float>* undef
ret void
}
; CHECK: cmp_2_doubles
; CHECK: cmpordpd
; CHECK: blendvpd
; CHECK: ret
define void @cmp_2_doubles() {
entry:
%0 = fcmp oeq <2 x double> undef, undef
%1 = select <2 x i1> %0, <2 x double> undef, <2 x double> undef
store <2 x double> %1, <2 x double>* undef
ret void
}
; CHECK: mp_11193
; CHECK: psraw $15
; CHECK: ret
define void @mp_11193(<8 x float> * nocapture %aFOO, <8 x float>* nocapture %RET)
nounwind {
allocas:
%bincmp = fcmp olt <8 x float> <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 9.000000e+00, float 1.000000e+00, float 9.000000e+00, float 1.000000e+00> , <float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00>
%t = extractelement <8 x i1> %bincmp, i32 0
%ft = sitofp i1 %t to float
%pp = bitcast <8 x float>* %RET to float*
store float %ft, float* %pp
ret void
}