8b360c69e9
This patch improves the fix in D110529 to prevent from crashing on value with byval attribute that is not added in SCCP solver. Authored-by: sinan.lin@linux.alibaba.com Reviewed By: ChuanqiXu Differential Revision: https://reviews.llvm.org/D126355
74 lines
2.2 KiB
LLVM
74 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
|
|
; Test function specialization wouldn't crash due to constant expression.
|
|
; Note that this test case shows that function specialization pass would
|
|
; transform the function even if no specialization happened.
|
|
|
|
; RUN: opt -function-specialization -force-function-specialization -S < %s | FileCheck %s
|
|
|
|
%struct = type { i8, i16, i32, i64, i64}
|
|
@Global = internal constant %struct {i8 0, i16 1, i32 2, i64 3, i64 4}
|
|
|
|
define internal i64 @func2(i64 *%x) {
|
|
entry:
|
|
%val = ptrtoint i64* %x to i64
|
|
ret i64 %val
|
|
}
|
|
|
|
define internal i64 @func(i64 *%x, i64 (i64*)* %binop) {
|
|
; CHECK-LABEL: @func(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = call i64 [[BINOP:%.*]](i64* [[X:%.*]])
|
|
; CHECK-NEXT: ret i64 [[TMP0]]
|
|
;
|
|
entry:
|
|
%tmp0 = call i64 %binop(i64* %x)
|
|
ret i64 %tmp0
|
|
}
|
|
|
|
define internal i64 @zoo(i1 %flag) {
|
|
; CHECK-LABEL: @zoo(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br i1 [[FLAG:%.*]], label [[PLUS:%.*]], label [[MINUS:%.*]]
|
|
; CHECK: plus:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @func2.2(i64* getelementptr inbounds ([[STRUCT:%.*]], %struct* @Global, i32 0, i32 3))
|
|
; CHECK-NEXT: br label [[MERGE:%.*]]
|
|
; CHECK: minus:
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @func2.1(i64* getelementptr inbounds ([[STRUCT]], %struct* @Global, i32 0, i32 4))
|
|
; CHECK-NEXT: br label [[MERGE]]
|
|
; CHECK: merge:
|
|
; CHECK-NEXT: [[TMP2:%.*]] = phi i64 [ [[TMP0]], [[PLUS]] ], [ [[TMP1]], [[MINUS]] ]
|
|
; CHECK-NEXT: ret i64 [[TMP2]]
|
|
;
|
|
entry:
|
|
br i1 %flag, label %plus, label %minus
|
|
|
|
plus:
|
|
%arg = getelementptr %struct, %struct* @Global, i32 0, i32 3
|
|
%tmp0 = call i64 @func2(i64* %arg)
|
|
br label %merge
|
|
|
|
minus:
|
|
%arg2 = getelementptr %struct, %struct* @Global, i32 0, i32 4
|
|
%tmp1 = call i64 @func2(i64* %arg2)
|
|
br label %merge
|
|
|
|
merge:
|
|
%tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
|
|
ret i64 %tmp2
|
|
}
|
|
|
|
|
|
define i64 @main() {
|
|
; CHECK-LABEL: @main(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @zoo(i1 false)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @zoo(i1 true)
|
|
; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[TMP1]], [[TMP2]]
|
|
; CHECK-NEXT: ret i64 [[TMP3]]
|
|
;
|
|
%1 = call i64 @zoo(i1 0)
|
|
%2 = call i64 @zoo(i1 1)
|
|
%3 = add i64 %1, %2
|
|
ret i64 %3
|
|
}
|