WholeProgramDevirt: Implement export/import support for VCP.
Differential Revision: https://reviews.llvm.org/D30017
llvm-svn: 297503
diff --git a/llvm/test/Transforms/WholeProgramDevirt/import.ll b/llvm/test/Transforms/WholeProgramDevirt/import.ll
index 6057c68..7f34b04 100644
--- a/llvm/test/Transforms/WholeProgramDevirt/import.ll
+++ b/llvm/test/Transforms/WholeProgramDevirt/import.ll
@@ -2,10 +2,17 @@
; RUN: opt -S -wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-uniform-ret-val.yaml < %s | FileCheck --check-prefixes=CHECK,UNIFORM-RET-VAL %s
; RUN: opt -S -wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-unique-ret-val0.yaml < %s | FileCheck --check-prefixes=CHECK,UNIQUE-RET-VAL0 %s
; RUN: opt -S -wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-unique-ret-val1.yaml < %s | FileCheck --check-prefixes=CHECK,UNIQUE-RET-VAL1 %s
+; RUN: opt -S -wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-vcp.yaml < %s | FileCheck --check-prefixes=CHECK,VCP,VCP64 %s
+; RUN: opt -S -wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-vcp.yaml -mtriple=i686-unknown-linux -data-layout=e-p:32:32 < %s | FileCheck --check-prefixes=CHECK,VCP,VCP32 %s
target datalayout = "e-p:64:64"
target triple = "x86_64-unknown-linux-gnu"
+; VCP: @__typeid_typeid1_0_1_byte = external hidden global i8, !absolute_symbol !0
+; VCP: @__typeid_typeid1_0_1_bit = external hidden global i8, !absolute_symbol !1
+; VCP: @__typeid_typeid2_8_3_byte = external hidden global i8, !absolute_symbol !0
+; VCP: @__typeid_typeid2_8_3_bit = external hidden global i8, !absolute_symbol !1
+
; Test cases where the argument values are known and we can apply virtual
; constant propagation.
@@ -22,6 +29,11 @@
; SINGLE-IMPL: call i32 bitcast (void ()* @singleimpl1 to i32 (i8*, i32)*)
%result = call i32 %fptr_casted(i8* %obj, i32 1)
; UNIFORM-RET-VAL: ret i32 42
+ ; VCP: [[VT1:%.*]] = bitcast {{.*}} to i8*
+ ; VCP: [[GEP1:%.*]] = getelementptr i8, i8* [[VT1]], i32 ptrtoint (i8* @__typeid_typeid1_0_1_byte to i32)
+ ; VCP: [[BC1:%.*]] = bitcast i8* [[GEP1]] to i32*
+ ; VCP: [[LOAD1:%.*]] = load i32, i32* [[BC1]]
+ ; VCP: ret i32 [[LOAD1]]
ret i32 %result
}
@@ -68,6 +80,12 @@
%result = call i1 %fptr_casted(i8* %obj, i32 3)
; UNIQUE-RET-VAL0: icmp ne i8* %vtablei8, @__typeid_typeid2_8_3_unique_member
; UNIQUE-RET-VAL1: icmp eq i8* %vtablei8, @__typeid_typeid2_8_3_unique_member
+ ; VCP: [[VT2:%.*]] = bitcast {{.*}} to i8*
+ ; VCP: [[GEP2:%.*]] = getelementptr i8, i8* [[VT2]], i32 ptrtoint (i8* @__typeid_typeid2_8_3_byte to i32)
+ ; VCP: [[LOAD2:%.*]] = load i8, i8* [[GEP2]]
+ ; VCP: [[AND2:%.*]] = and i8 [[LOAD2]], ptrtoint (i8* @__typeid_typeid2_8_3_bit to i8)
+ ; VCP: [[ICMP2:%.*]] = icmp ne i8 [[AND2]], 0
+ ; VCP: ret i1 [[ICMP2]]
ret i1 %result
trap:
@@ -78,6 +96,12 @@
; SINGLE-IMPL-DAG: declare void @singleimpl1()
; SINGLE-IMPL-DAG: declare void @singleimpl2()
+; VCP32: !0 = !{i32 -1, i32 -1}
+; VCP64: !0 = !{i64 0, i64 4294967296}
+
+; VCP32: !1 = !{i32 0, i32 256}
+; VCP64: !1 = !{i64 0, i64 256}
+
declare void @llvm.assume(i1)
declare void @llvm.trap()
declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata)