llvm-mirror/test/Transforms/InstSimplify/pr28725.ll
Igor Laevsky 67be682fe8 Reintroduce r320049, r320014 and r319894.
OpenGL issues should be fixed by now.

llvm-svn: 320568
2017-12-13 11:21:18 +00:00

13 lines
651 B
LLVM

; RUN: opt -S -instsimplify < %s | FileCheck %s
%S = type { i16, i32 }
define <2 x i16> @test1() {
entry:
%b = insertelement <2 x i16> <i16 undef, i16 0>, i16 extractvalue (%S select (i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), %S zeroinitializer, %S { i16 0, i32 1 }), 0), i32 0
ret <2 x i16> %b
}
; InstCombine will be able to fold this into zeroinitializer
; CHECK-LABEL: @test1(
; CHECK: ret <2 x i16> <i16 extractvalue (%S select (i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), %S zeroinitializer, %S { i16 0, i32 1 }), 0), i16 0>