Files
clang-p2996/llvm/test/Transforms/InstSimplify/ConstProp/gep-zeroinit-vector.ll
Arthur Eubanks 486ed88533 [ConstProp] Remove ConstantPropagation
As discussed in
http://lists.llvm.org/pipermail/llvm-dev/2020-July/143801.html.

Currently no users outside of unit tests.

Replace all instances in tests of -constprop with -instsimplify.
Notable changes in tests:
* vscale.ll - @llvm.sadd.sat.nxv16i8 is evaluated by instsimplify, use a fake intrinsic instead
* InsertElement.ll - insertelement undef is removed by instsimplify in @insertelement_undef
llvm/test/Transforms/ConstProp moved to llvm/test/Transforms/InstSimplify/ConstProp

Reviewed By: lattner, nikic

Differential Revision: https://reviews.llvm.org/D85159
2020-08-26 15:51:30 -07:00

30 lines
1.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instsimplify -S -o - | FileCheck %s
; Testcase that verify that we don't get a faulty bitcast that cast between
; different sizes.
%rec8 = type { i16 }
@a = global [1 x %rec8] zeroinitializer
define <2 x i16*> @test_gep() {
; CHECK-LABEL: @test_gep(
; CHECK-NEXT: ret <2 x i16*> <i16* getelementptr inbounds ([1 x %rec8], [1 x %rec8]* @a, i32 0, i32 0, i32 0), i16* getelementptr inbounds ([1 x %rec8], [1 x %rec8]* @a, i32 0, i32 0, i32 0)>
;
%A = getelementptr [1 x %rec8], [1 x %rec8]* @a, <2 x i16> zeroinitializer, <2 x i64> zeroinitializer
%B = bitcast <2 x %rec8*> %A to <2 x i16*>
ret <2 x i16*> %B
}
; Testcase that verify the cast-of-cast when the outer/second cast is to a
; vector type.
define <4 x i16> @test_mmx_const() {
; CHECK-LABEL: @test_mmx_const(
; CHECK-NEXT: ret <4 x i16> zeroinitializer
;
%A = bitcast <2 x i32> zeroinitializer to x86_mmx
%B = bitcast x86_mmx %A to <4 x i16>
ret <4 x i16> %B
}