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[BDCE] Remove -instsimplify from BDCE test; NFC 

To make it more obvious which part of the transformation is carried
out by BDCE. Also drop the CHECK-IO lines which only run -instsimplify
as they don't really seem meaningful if the main check doesn't run
-instsimplify either.

llvm-svn: 350189
This commit is contained in:
Nikita Popov 2019-01-01 10:17:35 +00:00
parent bc9986e9ad
commit d4bf57be6b
1 changed files with 19 additions and 56 deletions
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75
llvm/test/Transforms/BDCE/vectors.ll
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@ -1,25 +1,17 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -bdce -instsimplify < %s | FileCheck %s
; RUN: opt -S -instsimplify < %s | FileCheck %s -check-prefix=CHECK-IO
; CHECK-IO lines to ensure that transformations are not performed by only instsimplify.
; RUN: opt -S -bdce < %s | FileCheck %s
; BDCE applied to integer vectors.
define <2 x i32> @test_basic(<2 x i32> %a, <2 x i32> %b) {
; CHECK-LABEL: @test_basic(
; CHECK-NEXT: [[A2:%.*]] = add <2 x i32> [[A:%.*]], <i32 1, i32 1>
; CHECK-NEXT: [[A3:%.*]] = and <2 x i32> zeroinitializer, <i32 4, i32 4>
; CHECK-NEXT: [[B2:%.*]] = add <2 x i32> [[B:%.*]], <i32 1, i32 1>
; CHECK-NEXT: [[B3:%.*]] = and <2 x i32> [[B2]], <i32 8, i32 8>
; CHECK-NEXT: [[D:%.*]] = ashr <2 x i32> [[B3]], <i32 3, i32 3>
; CHECK-NEXT: [[C:%.*]] = or <2 x i32> [[A3]], [[B3]]
; CHECK-NEXT: [[D:%.*]] = ashr <2 x i32> [[C]], <i32 3, i32 3>
; CHECK-NEXT: ret <2 x i32> [[D]]
;
; CHECK-IO-LABEL: @test_basic(
; CHECK-IO-NEXT: [[A2:%.*]] = add <2 x i32> [[A:%.*]], <i32 1, i32 1>
; CHECK-IO-NEXT: [[A3:%.*]] = and <2 x i32> [[A2]], <i32 4, i32 4>
; CHECK-IO-NEXT: [[B2:%.*]] = add <2 x i32> [[B:%.*]], <i32 1, i32 1>
; CHECK-IO-NEXT: [[B3:%.*]] = and <2 x i32> [[B2]], <i32 8, i32 8>
; CHECK-IO-NEXT: [[C:%.*]] = or <2 x i32> [[A3]], [[B3]]
; CHECK-IO-NEXT: [[D:%.*]] = ashr <2 x i32> [[C]], <i32 3, i32 3>
; CHECK-IO-NEXT: ret <2 x i32> [[D]]
;
%a2 = add <2 x i32> %a, <i32 1, i32 1>
%a3 = and <2 x i32> %a2, <i32 4, i32 4>
@ -33,21 +25,14 @@ define <2 x i32> @test_basic(<2 x i32> %a, <2 x i32> %b) {
; Going vector -> scalar
define i32 @test_extractelement(<2 x i32> %a, <2 x i32> %b) {
; CHECK-LABEL: @test_extractelement(
; CHECK-NEXT: [[A2:%.*]] = add <2 x i32> [[A:%.*]], <i32 1, i32 1>
; CHECK-NEXT: [[A3:%.*]] = and <2 x i32> zeroinitializer, <i32 4, i32 4>
; CHECK-NEXT: [[B2:%.*]] = add <2 x i32> [[B:%.*]], <i32 1, i32 1>
; CHECK-NEXT: [[B3:%.*]] = and <2 x i32> [[B2]], <i32 8, i32 8>
; CHECK-NEXT: [[D:%.*]] = extractelement <2 x i32> [[B3]], i32 0
; CHECK-NEXT: [[C:%.*]] = or <2 x i32> [[A3]], [[B3]]
; CHECK-NEXT: [[D:%.*]] = extractelement <2 x i32> [[C]], i32 0
; CHECK-NEXT: [[E:%.*]] = ashr i32 [[D]], 3
; CHECK-NEXT: ret i32 [[E]]
;
; CHECK-IO-LABEL: @test_extractelement(
; CHECK-IO-NEXT: [[A2:%.*]] = add <2 x i32> [[A:%.*]], <i32 1, i32 1>
; CHECK-IO-NEXT: [[A3:%.*]] = and <2 x i32> [[A2]], <i32 4, i32 4>
; CHECK-IO-NEXT: [[B2:%.*]] = add <2 x i32> [[B:%.*]], <i32 1, i32 1>
; CHECK-IO-NEXT: [[B3:%.*]] = and <2 x i32> [[B2]], <i32 8, i32 8>
; CHECK-IO-NEXT: [[C:%.*]] = or <2 x i32> [[A3]], [[B3]]
; CHECK-IO-NEXT: [[D:%.*]] = extractelement <2 x i32> [[C]], i32 0
; CHECK-IO-NEXT: [[E:%.*]] = ashr i32 [[D]], 3
; CHECK-IO-NEXT: ret i32 [[E]]
;
%a2 = add <2 x i32> %a, <i32 1, i32 1>
%a3 = and <2 x i32> %a2, <i32 4, i32 4>
@ -62,22 +47,15 @@ define i32 @test_extractelement(<2 x i32> %a, <2 x i32> %b) {
; Going scalar -> vector
define <2 x i32> @test_insertelement(i32 %a, i32 %b) {
; CHECK-LABEL: @test_insertelement(
; CHECK-NEXT: [[Y:%.*]] = insertelement <2 x i32> undef, i32 [[B:%.*]], i32 0
; CHECK-NEXT: [[Y2:%.*]] = insertelement <2 x i32> [[Y]], i32 [[A:%.*]], i32 1
; CHECK-NEXT: [[X:%.*]] = insertelement <2 x i32> undef, i32 [[A:%.*]], i32 0
; CHECK-NEXT: [[X2:%.*]] = insertelement <2 x i32> zeroinitializer, i32 [[B:%.*]], i32 1
; CHECK-NEXT: [[X3:%.*]] = and <2 x i32> zeroinitializer, <i32 4, i32 4>
; CHECK-NEXT: [[Y:%.*]] = insertelement <2 x i32> undef, i32 [[B]], i32 0
; CHECK-NEXT: [[Y2:%.*]] = insertelement <2 x i32> [[Y]], i32 [[A]], i32 1
; CHECK-NEXT: [[Y3:%.*]] = and <2 x i32> [[Y2]], <i32 8, i32 8>
; CHECK-NEXT: [[U:%.*]] = ashr <2 x i32> [[Y3]], <i32 3, i32 3>
; CHECK-NEXT: [[Z:%.*]] = or <2 x i32> [[X3]], [[Y3]]
; CHECK-NEXT: [[U:%.*]] = ashr <2 x i32> [[Z]], <i32 3, i32 3>
; CHECK-NEXT: ret <2 x i32> [[U]]
;
; CHECK-IO-LABEL: @test_insertelement(
; CHECK-IO-NEXT: [[X:%.*]] = insertelement <2 x i32> undef, i32 [[A:%.*]], i32 0
; CHECK-IO-NEXT: [[X2:%.*]] = insertelement <2 x i32> [[X]], i32 [[B:%.*]], i32 1
; CHECK-IO-NEXT: [[X3:%.*]] = and <2 x i32> [[X2]], <i32 4, i32 4>
; CHECK-IO-NEXT: [[Y:%.*]] = insertelement <2 x i32> undef, i32 [[B]], i32 0
; CHECK-IO-NEXT: [[Y2:%.*]] = insertelement <2 x i32> [[Y]], i32 [[A]], i32 1
; CHECK-IO-NEXT: [[Y3:%.*]] = and <2 x i32> [[Y2]], <i32 8, i32 8>
; CHECK-IO-NEXT: [[Z:%.*]] = or <2 x i32> [[X3]], [[Y3]]
; CHECK-IO-NEXT: [[U:%.*]] = ashr <2 x i32> [[Z]], <i32 3, i32 3>
; CHECK-IO-NEXT: ret <2 x i32> [[U]]
;
%x = insertelement <2 x i32> undef, i32 %a, i32 0
%x2 = insertelement <2 x i32> %x, i32 %b, i32 1
@ -100,15 +78,6 @@ define <2 x i32> @test_conversion(<2 x i32> %a) {
; CHECK-NEXT: [[Z:%.*]] = fptoui <2 x double> [[Y]] to <2 x i32>
; CHECK-NEXT: [[U:%.*]] = ashr <2 x i32> [[Z]], <i32 3, i32 3>
; CHECK-NEXT: ret <2 x i32> [[U]]
;
; CHECK-IO-LABEL: @test_conversion(
; CHECK-IO-NEXT: [[A2:%.*]] = add <2 x i32> [[A:%.*]], <i32 1, i32 1>
; CHECK-IO-NEXT: [[A3:%.*]] = and <2 x i32> [[A2]], <i32 2, i32 2>
; CHECK-IO-NEXT: [[X:%.*]] = uitofp <2 x i32> [[A3]] to <2 x double>
; CHECK-IO-NEXT: [[Y:%.*]] = fadd <2 x double> [[X]], <double 1.000000e+00, double 1.000000e+00>
; CHECK-IO-NEXT: [[Z:%.*]] = fptoui <2 x double> [[Y]] to <2 x i32>
; CHECK-IO-NEXT: [[U:%.*]] = ashr <2 x i32> [[Z]], <i32 3, i32 3>
; CHECK-IO-NEXT: ret <2 x i32> [[U]]
;
%a2 = add <2 x i32> %a, <i32 1, i32 1>
%a3 = and <2 x i32> %a2, <i32 2, i32 2>
@ -122,18 +91,12 @@ define <2 x i32> @test_conversion(<2 x i32> %a) {
; Assumption invalidation (adapted from invalidate-assumptions.ll)
define <2 x i1> @test_assumption_invalidation(<2 x i1> %b, <2 x i8> %x) {
; CHECK-LABEL: @test_assumption_invalidation(
; CHECK-NEXT: [[SETBIT:%.*]] = or <2 x i8> [[X:%.*]], <i8 64, i8 64>
; CHECK-NEXT: [[LITTLE_NUMBER:%.*]] = zext <2 x i1> [[B:%.*]] to <2 x i8>
; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i8> zeroinitializer, [[LITTLE_NUMBER]]
; CHECK-NEXT: [[BIG_NUMBER:%.*]] = shl <2 x i8> zeroinitializer, <i8 1, i8 1>
; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i8> [[BIG_NUMBER]], [[LITTLE_NUMBER]]
; CHECK-NEXT: [[TRUNC:%.*]] = trunc <2 x i8> [[SUB]] to <2 x i1>
; CHECK-NEXT: ret <2 x i1> [[TRUNC]]
;
; CHECK-IO-LABEL: @test_assumption_invalidation(
; CHECK-IO-NEXT: [[SETBIT:%.*]] = or <2 x i8> [[X:%.*]], <i8 64, i8 64>
; CHECK-IO-NEXT: [[LITTLE_NUMBER:%.*]] = zext <2 x i1> [[B:%.*]] to <2 x i8>
; CHECK-IO-NEXT: [[BIG_NUMBER:%.*]] = shl <2 x i8> [[SETBIT]], <i8 1, i8 1>
; CHECK-IO-NEXT: [[SUB:%.*]] = sub nuw <2 x i8> [[BIG_NUMBER]], [[LITTLE_NUMBER]]
; CHECK-IO-NEXT: [[TRUNC:%.*]] = trunc <2 x i8> [[SUB]] to <2 x i1>
; CHECK-IO-NEXT: ret <2 x i1> [[TRUNC]]
;
%setbit = or <2 x i8> %x, <i8 64, i8 64>
%little_number = zext <2 x i1> %b to <2 x i8>