llvm-6502/test/CodeGen/PowerPC/vsel-prom.ll
Hal Finkel 8452d01224 [SDAG] Don't try to use FP_EXTEND/FP_ROUND for int<->fp promotions
The PowerPC backend has long promoted some floating-point vector operations
(such as select) to integer vector operations. Unfortunately, this behavior was
broken by r216555. When using FP_EXTEND/FP_ROUND for promotions, we must check
that both the old and new types are floating-point types. Otherwise, we must
use BITCAST as we did prior to r216555 for everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228969 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-12 22:43:52 +00:00

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LLVM

; RUN: llc -mcpu=pwr7 < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; Function Attrs: nounwind
define void @Compute_Lateral() #0 {
entry:
br i1 undef, label %if.then, label %if.end
if.then: ; preds = %entry
unreachable
if.end: ; preds = %entry
%0 = select i1 undef, <2 x double> undef, <2 x double> zeroinitializer
%1 = extractelement <2 x double> %0, i32 1
store double %1, double* undef, align 8
ret void
; CHECK-LABEL: @Compute_Lateral
}
attributes #0 = { nounwind }